Tag Heptane

n-Heptane Overview

n-Heptane (CAS No. 142-82-5, EC No. 205-563-8) is a straight-chain hydrocarbon (C₇H₁₆) recognized throughout the European regulatory framework as a key industrial solvent. It is classified under the CLP Regulation Annex VI and officially registered in ECHA’s Registered Substances Database, confirming its full REACH compliance for import and use across the European Economic Area (EEA) at volumes exceeding 1,000 tonnes per year.

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Substance Names and Other Identifiers

Main substance name:

• n-Heptane

Other common names and synonyms:

• Heptane
• Heptan
• Heptanen
• Dipropylmethane
• Dipropyl methane
• Heptyl hydride
• Normal heptane
• Heptane (all isomers)
• Heptane [99.0% for HPLC Solvent]
• Heptane [and isomers]
• n-Heptano
• Gettysolve-C
• Skellysolve C
• Eptani
• Hydrocarbon solvents

Regulatory process names:

• Heptane
• Heptane; n-Heptane
• n-Heptane
• heptane/n-heptane

Translated names (examples):

• Heptan, n-Heptan (German)
• Heptan, N-heptan (Romanian)

Trade names:

• Heptane
• n-Heptane

Identifiers:

• CAS number: 142-82-5
• EC number: 205-563-8
• Index number: 601-008-00-2
• Other CAS numbers (legacy or related): 44607-13-8, 8031-33-2

IUPAC names:

• Dipropylmethane
• n-Heptane

Regulatory and Directive references:
n-Heptane is listed under multiple EU regulations and directives, including:

General Product Safety Regulation – Hazardous Substances

REACH Registration Dossier

EC Inventory

C&L Inventory

Pre-registration process

Aerosols Directive – Flammable Contents

Chemical Agents Directive (CAD) – Hazardous Agents

Ambient Air Quality Directive, Annex X – Ozone Precursor Substances

Occupational Exposure Limits (OELVs) – Indicative List

Construction Products Regulation – Hazardous Substances (Annex I & Art. 6)

EU Ecolabel Regulation – Hazardous Substance Restrictions

Medical Devices Directives and Regulations – Hazardous Substances

Pressure Equipment Directive – Group 1 Fluids

Waste Framework Directive – Annex III Hazardous Properties

Fertiliser Regulation, Annex I, E.3 – Chelating/Complexing Agents

Due to its extensive industrial and scientific use, n-Heptane is known under a wide range of regulatory, IUPAC, and trade names across different European legislations and databases.

Regulatory Process Names:
Dipropyl Methane, Eptani, Gettysolve-C, Heptan, Heptane, Heptanen, Heptyl Hydride, n-Heptane, Skellysolve C

Translated Names (EU languages):

• Heptan / n-Heptan (DE) – German
• Heptan / N-heptan (RO) – Romanian

IUPAC and Technical Names:
Dipropylmethane, n-Heptane, Heptane (all isomers), Heptane [99.0% for HPLC Solvent], Normal Heptane, Hydrocarbon Solvent

Trade Names:
Heptane, n-Heptane, Gettysolve-C, Skellysolve C

Identifiers:

• CAS Number: 142-82-5 (Main)
• EC Number: 205-563-8
• Index Number (CLP): 601-008-00-2
• Other CAS Numbers: 44607-13-8, 8031-33-2
• Molecular Formula: C₇H₁₆

These identifiers appear consistently across EINECS, C&L Inventory, REACH Pre-registration, and multiple EU regulatory annexes, ensuring full traceability and transparency in supply.

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Regulatory Framework and Compliance

n-Heptane is explicitly listed under numerous European chemical and environmental legislations, highlighting its regulated yet accepted status in industrial and laboratory operations:

• REACH Regulation – Registered substance (≥1000 tpa)
• CLP Regulation Annex VI – Harmonized classification & labeling
• Seveso III Directive Annex I – Industrial accident prevention
• Waste Framework Directive Annex III – Hazardous properties
• Occupational Exposure Limits (OELs) – Indicative EU OELVs
• Construction Products Regulation (Annex I & Art.6(5))
• EU Ecolabels & Environmental Policy Framework Directive
• Medical Devices Regulation / Directive (Hazardous Substances)
• General Product Safety Regulation & Workplace Safety Directive

This extensive inclusion across directives confirms that n-Heptane is both recognized and regulated for controlled industrial use, making it an ideal choice for European manufacturers seeking long-term compliant sourcing.

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Applications Across European Industries

n-Heptane’s versatility has established it as a critical raw material and process solvent in:

• Pharmaceutical manufacturing – extraction, crystallization, and purification
• Laboratories – high-purity analytical use (HPLC, GC)
• Coatings and adhesives – solvent and viscosity control
• Automotive and fuel industry – reference standard for octane rating
• Cleaning and degreasing agents – controlled volatility applications

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Safety and Environmental Management

Classified as a highly flammable liquid (H225), skin irritant (H315), and toxic to aquatic life (H410), n-Heptane must be handled with professional containment, proper labeling, and full compliance to the GHS/CLP system.
Manufacturers provide complete Safety Data Sheets (SDS) and Guidance on Safe Use, aligned with the Chemical Agents Directive (CAD) and Pressure Equipment Directive.

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Why Choose Our n-Heptane

Fully REACH-registered and CLP compliant
High-purity grades (up to 99%) for pharmaceutical and analytical use
Stable European supply in ISO tanks or drums
Complete documentation package (SDS, COA, technical data)
Proven compliance with EU industrial, medical, and environmental standards

Our n-Heptane product line delivers consistency, safety, and full regulatory transparency for European customers in pharmaceuticals, R&D, and specialty chemicals manufacturing.

For technical details, safety classifications, and compliance information, professionals can refer to the European Chemicals Agency (ECHA) official database:
https://echa.europa.eu/substance-information/-/substanceinfo/100.014.194

This authoritative link strengthens data transparency and helps industry experts verify REACH registration status, CLP classification, and exposure limits of n-Heptane (CAS 142-82-5) under European regulatory frameworks.

Empowering Innovation Across Chemical Manufacturing, Pharmaceuticals, Electronics, and Beyond

Abstract

Junyuan Petroleum Group, a premier global manufacturer of pentane, hexane, and heptane, offers high-purity chemical solutions tailored to the diverse needs of industries worldwide. From chemical manufacturing and pharmaceutical production to electronics, building materials, and international trade, Junyuan’s solvent portfolio fosters efficiency, sustainability, and innovation. This article explores how Junyuan’s products are critical enablers across these sectors, delivering reliable, scalable, and environmentally conscious solutions that meet modern industrial demands.

Keywords: Junyuan Petroleum Group, pentane, hexane, heptane, chemical manufacturing, pharmaceuticals, electronics, building materials, industrial solvents, international trade

Introduction

In the ever-evolving global landscape of chemical and industrial markets, the demand for high-quality solvents continues to grow. Junyuan Petroleum Group, established in 2006, stands as a leading force in this field, offering specialized solutions through the production of pentane, hexane, and heptane—three key hydrocarbons that power a broad spectrum of applications. With state-of-the-art production facilities located in Shandong and Xinjiang, and a robust global distribution network, Junyuan is uniquely positioned to meet the needs of diverse industries such as chemical manufacturing, pharmaceuticals, electronics, building materials, and international trade.

Junyuan Petroleum Group is the predecessor of Junyuan Holding Group, which has grown into a diversified conglomerate with expertise in various industries, further enhancing its global presence and capabilities. This article outlines how Junyuan’s specialized products provide tailored solutions to these sectors, driving innovation and operational excellence, while contributing to sustainability.

Chemical Manufacturing: Precision Solvents for a Sustainable Future

The chemical manufacturing industry relies heavily on solvents for a variety of purposes including reactions, extractions, and purifications. Junyuan’s offerings of pentane, hexane, and heptane—including high-purity n-pentane (95%-99%), n-hexane (60%-99%), and n-heptane (99%)—provide the precision and consistency necessary for the production of specialty chemicals, catalysts, and petrochemical derivatives.

• N-Hexane is widely used as an extraction solvent for vegetable oils and essential oils, a crucial part of the food processing industry.

• N-Heptane, with its non-polar properties, serves as a primary solvent in organic synthesis, such as in the production of pharmaceuticals and fuel additives.

These solvents are also integral in manufacturing high-performance coatings, adhesives, and polymers that are used across a broad array of industries. Junyuan ensures consistent product quality, with stringent quality controls to maintain lot-to-lot consistency, ensuring chemical manufacturers achieve stable, reproducible results, enhancing both productivity and sustainability. As environmental concerns continue to drive innovation, Junyuan remains committed to producing solvents that adhere to eco-friendly standards, thus helping manufacturers reduce their environmental footprint while maintaining performance.

Pharmaceuticals: High-Purity Solutions for Life-Saving Innovations

Purity is of paramount importance in the pharmaceutical industry, where even trace amounts of impurities can compromise the efficacy of life-saving drugs. Junyuan’s high-purity n-heptane (99%+) and n-hexane are indispensable for a range of pharmaceutical applications, including active pharmaceutical ingredient (API) synthesis, solvent extraction, and laboratory research.

• N-Heptane is particularly effective for extracting botanical compounds, providing a safer and more environmentally friendly alternative to toxic solvents like hexane.

• Hexane is often used in the production of excipients and reagents, playing a crucial role in developing formulations for oral drugs, vaccines, and other medical applications.

With ISO9001 and ISO14001 certifications, Junyuan meets the rigorous global standards for quality and safety, ensuring pharmaceutical companies can produce medicines efficiently and effectively while minimizing risks. Junyuan’s commitment to quality control ensures pharmaceutical manufacturers can trust their products for critical life-saving applications, knowing they meet the highest standards of purity and reliability.

Electronics: Enabling Cutting-Edge Technology

The electronics industry is one of the most dynamic sectors, with increasing demands for high-performance materials and manufacturing processes. Solvents like n-heptane and isohexane are essential for precision cleaning and degreasing delicate components in the production of semiconductors, circuit boards, and other electronic components. Junyuan’s solvents offer low residue and exceptional solvency, ensuring that electronic components are free from contaminants that could affect performance.

Additionally, these solvents play a critical role in formulating specialty resins and adhesives that are used to create durable, high-performance electronic materials, including protective coatings and encapsulation materials. As the technology sector continues to advance, Junyuan provides scalable solutions that meet the evolving needs of electronics manufacturers. Their products not only support cutting-edge developments but also help companies stay ahead of the competition by enabling them to produce high-quality materials efficiently and sustainably.

Building Materials: Enhancing Durability and Efficiency

The construction and building materials industry has seen significant advances in recent years, driven by innovations that improve energy efficiency and sustainability. Junyuan’s pentane-based products are at the forefront of these developments. As a leading supplier of n-pentane, isopentane, and pentane blends, Junyuan provides blowing agents critical for producing polyurethane and polystyrene foams, which are widely used in construction for insulation materials.

• These foams offer superior thermal insulation, contributing to energy-efficient buildings that reduce environmental impact and energy costs.

• N-Heptane also serves as a solvent in fast-drying coatings and rubber cements, enhancing the durability and application efficiency of construction materials.

Junyuan’s ability to produce customizable blends and provide reliable logistics supports the construction industry’s push for higher performance, lower energy consumption, and greater sustainability. By ensuring the availability of high-quality materials, Junyuan is helping to shape the future of green building technologies.

International Trade: Bridging Global Markets with Reliable Supply

In addition to production, Junyuan Petroleum Group excels in international trade and logistics. The company serves clients across Africa, the Americas, the Middle East, and Asia, providing consistent and reliable access to high-quality pentane, hexane, and heptane. Junyuan’s expertise in global trade is supported by its extensive logistics network, which includes a fleet of transportation vehicles and advanced packaging solutions such as drums, ISO tanks, and flexitanks.

This global reach is essential for chemical distributors and industrial clients who require reliable access to raw materials for manufacturing and resale. With strategic locations and strong partnerships, Junyuan ensures timely deliveries and streamlined supply chain management, allowing businesses worldwide to meet local demand with high-quality, cost-effective solutions.

Conclusion

Junyuan Petroleum Group’s pentane, hexane, and heptane products are more than just solvents—they are catalysts for progress across multiple industries. Through high-purity manufacturing, technical innovation, and a robust global network, Junyuan empowers manufacturers in chemical production, pharmaceuticals, electronics, building materials, and international trade to achieve their goals. As industries evolve and demand more sustainable, efficient solutions, Junyuan remains a steadfast partner, delivering the chemical expertise and reliability needed to drive the future of these sectors.

Call to Action

Discover how Junyuan Petroleum Group can elevate your business with tailored chemical solutions. Contact us today to explore our full product range and unlock new opportunities for your industry. Reach out to us via email at info@junyuanpetroleumgroup.com or call +86 178 1030 0898 to learn more about how we can support your operations and growth.

Product Overview

n-Heptane 99% is a high-purity aliphatic hydrocarbon solvent widely used in pharmaceutical synthesis, analytical testing, and specialty chemical manufacturing. With its narrow distillation range, low aromatic content, and excellent volatility characteristics, it ensures consistency and reliability in every application.

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Technical Specifications

Parameter	Specification
Density (15°C, g/cm³)	0.685 – 0.693
Appearance	Clear and colorless
Water Content (ppm)	≤ 50
Saybolt Color	≥ +30
Copper Corrosion (100°C, 2h)	≤ 1
Non-volatile Residue (mg/100ml)	≤ 1
Refractive Index (20°C)	1.3870 – 1.3890
Aromatic Content (ppm)	≤ 10
Benzene Content (ppm)	≤ 2
Sulfur Content (ppm)	≤ 1
Purity (% m/m)	≥ 99
3-Methylhexane (%)	≤ 0.50
2-Methylhexane (%)	≤ 0.20
Methylcyclohexane (%)	≤ 0.30
Initial Boiling Point (IBP, °C)	≥ 96
Final Boiling Point (DP, °C)	≤ 105
Distillation Range (5–95%, °C)	≤ 1.5

These specifications demonstrate excellent batch consistency, low impurity levels, and high solvent performance, ensuring suitability for critical manufacturing environments.

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Compliance and Safety Statements

Melamine-Free Statement
No melamine is used during production, and the product contains no melamine residues.

Nitrosamines-Free Statement
n-Heptane is a pure hydrocarbon solvent. No nitrosamine compounds are introduced or present in the product.

Absence of Glycols
This product contains no glycol components.

Absence of Mesylates (Methanesulfonates)
n-Heptane production does not involve any sulfonate compounds; mesylates are confirmed absent.

Genotoxic Impurities Statement
n-Heptane is a single-component hydrocarbon solvent and does not contain any genotoxic impurities.

Absence of Allergens, Aflatoxins, and Additives
Derived from petroleum hydrocarbon distillates, n-Heptane is produced without the addition of allergens, aflatoxins, or food/pharmaceutical additives.

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Key Advantages

• High purity (≥99%) for sensitive chemical and pharmaceutical processes
• Extremely low aromatic and sulfur content, ensuring clean performance
• Stable physicochemical properties across production batches
• Fully compliant with industry safety and purity expectations

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Applications

• Pharmaceuticals: Extraction, crystallization, and purification
• Fine Chemicals: Reaction solvent and intermediate carrier
• Analytical Laboratories: Chromatographic analysis and sample preparation
• Coatings & Adhesives: Formulation of high-performance systems requiring non-polar solvents

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Conclusion

n-Heptane 99% is a premium-grade hydrocarbon solvent that meets the stringent technical and regulatory requirements of modern industries. With consistent purity, verified compliance, and reliable global supply, it is an ideal choice for manufacturers seeking efficiency, safety, and performance in solvent applications.

In the competitive landscape of industrial chemicals, quality, reliability, and purity define success. Our premium high-purity pentanes – including n-Pentane, Isopentane, and Cyclopentane – are engineered to meet the strictest technical standards required by manufacturers in electronics, pharmaceuticals, adhesives, and refrigeration industries.

Our products are designed to directly compete with industry leaders such as SK and LG, offering equivalent or superior performance and purity. They are distinguished by:

Isopentane purity above 99%, ensuring stable and predictable performance in refrigeration systems and high-precision applications. Ultra-low impurity levels, with cyclic pentanes below 100 ppm, light fractions under 0.5%, and total sulfur under 1 ppm. Negligible aromatic content, with benzene below 10 ppm, and non-volatile residues less than 1 mg/100 ml, ideal for sensitive chemical processes.

These specifications reflect our commitment to chemical purity, process safety, and regulatory compliance. Having successfully supplied demanding Asian markets, our pentanes have proven their consistent quality, excellent performance, and strong reputation. This regional success confirms our ability to support global industrial partners who require high-grade pentanes for critical applications.

Whether used as solvents, foam-blowing agents, or high-purity chemical intermediates, our pentanes provide industrial users with uncompromising quality, reliable supply, and peace of mind. Partner with us to access world-class pentanes designed to match or outperform leading competitors in the market.

Industry Transformation Creates Certainty in Uncertain Times

The European chemical industry is undergoing a historic transformation. With global giants such as Dow, INEOS, Shell, and others closing or downsizing key production facilities, the region’s supply landscape is shifting dramatically. By the end of 2027, Europe is expected to lose approximately 4.6 million tons/year of ethylene capacity, directly reshaping the downstream solvent market. Among these, n-Heptane is facing a structural supply shortage, even as demand remains resilient.

Market Restructuring and the Emerging Supply Gap

Recent plant closures highlight this dramatic shift:

Dow will shut down its ethylene cracker in Böhlen, Germany (510,000 t/y capacity) by 2027 INEOS permanently closed its phenol and acetone facilities in Gladbeck, Germany Westlake Chemical ceased operations at its Pernis, Netherlands site (150,000 t/y BPA) Celanese shut down its VAM plant in Frankfurt, Germany

These moves have pushed Europe’s chemical capacity utilization rate down to 74%, the lowest in decades. The resulting contraction in local supply capabilities has amplified the shortage of critical solvents, including n-Heptane, across pharmaceutical, coatings, adhesive, and rubber industries.

Junyuan Petroleum Group’s Advantage: Compliance + Reliability

Amid this uncertainty, Junyuan Petroleum Group provides a stable and fully compliant n-Heptane supply to European customers, backed by REACH registration and stringent quality standards.

Key Advantages:

Full REACH Compliance – Seamless market access for European clients. Stable Production Base – China-based facilities unaffected by Europe’s energy crisis. Cost Competitiveness – Significant advantage vs. European producers (EU natural gas prices are 3.3x higher than the U.S.). High Purity Guarantee – n-Heptane purity reaching 99.9%, meeting the demands of high-end applications.

Core Applications:

Pharmaceuticals – extraction solvent, crystallization medium Coatings & Inks – thinner and cleaning agent Adhesives – reaction medium and diluent Rubber Processing – solvent and extraction agent

Partnership Opportunities: Building Resilient Supply Chains

We offer European partners flexible collaboration models to ensure long-term stability and performance:

Sample Supply & Technical Dossiers – including full REACH documentation Flexible Delivery Solutions – from trial orders to long-term supply contracts Technical Support – tailored application guidance and customized solutions

Conclusion: Turning Market Disruption into Growth

The restructuring of Europe’s chemical industry is creating new opportunities in the n-Heptane supply chain. With REACH-certified, high-purity, and cost-effective products, Junyuan Petroleum Group is ready to support European customers in building reliable, sustainable, and future-ready supply networks.

Contact us today to request product details, technical documents, or samples, and secure your competitive advantage in this evolving market.

Industry Transformation Creates Certainty in Uncertain Times

The European chemical industry is undergoing a historic transformation. With global giants such as Dow, INEOS, Shell, and others closing or downsizing key production facilities, the region’s supply landscape is shifting dramatically. By the end of 2027, Europe is expected to lose approximately 4.6 million tons/year of ethylene capacity, directly reshaping the downstream solvent market. Among these, n-Heptane is facing a structural supply shortage, even as demand remains resilient.

Market Restructuring and the Emerging Supply Gap

Recent plant closures highlight this dramatic shift:

Dow will shut down its ethylene cracker in Böhlen, Germany (510,000 t/y capacity) by 2027 INEOS permanently closed its phenol and acetone facilities in Gladbeck, Germany Westlake Chemical ceased operations at its Pernis, Netherlands site (150,000 t/y BPA) Celanese shut down its VAM plant in Frankfurt, Germany

These moves have pushed Europe’s chemical capacity utilization rate down to 74%, the lowest in decades. The resulting contraction in local supply capabilities has amplified the shortage of critical solvents, including n-Heptane, across pharmaceutical, coatings, adhesive, and rubber industries.

Junyuan Petroleum Group’s Advantage: Compliance + Reliability

Amid this uncertainty, Junyuan Petroleum Group provides a stable and fully compliant n-Heptane supply to European customers, backed by REACH registration and stringent quality standards.

Key Advantages:

Full REACH Compliance – Seamless market access for European clients. Stable Production Base – China-based facilities unaffected by Europe’s energy crisis. Cost Competitiveness – Significant advantage vs. European producers (EU natural gas prices are 3.3x higher than the U.S.). High Purity Guarantee – n-Heptane purity reaching 99.9%, meeting the demands of high-end applications.

Core Applications:

Pharmaceuticals – extraction solvent, crystallization medium Coatings & Inks – thinner and cleaning agent Adhesives – reaction medium and diluent Rubber Processing – solvent and extraction agent

Partnership Opportunities: Building Resilient Supply Chains

We offer European partners flexible collaboration models to ensure long-term stability and performance:

Sample Supply & Technical Dossiers – including full REACH documentation Flexible Delivery Solutions – from trial orders to long-term supply contracts Technical Support – tailored application guidance and customized solutions

Conclusion: Turning Market Disruption into Growth

The restructuring of Europe’s chemical industry is creating new opportunities in the n-Heptane supply chain. With REACH-certified, high-purity, and cost-effective products, Junyuan Petroleum Group is ready to support European customers in building reliable, sustainable, and future-ready supply networks.

Contact us today to request product details, technical documents, or samples, and secure your competitive advantage in this evolving market.

Industry Transformation Creates Certainty in Uncertain Times

The European chemical industry is undergoing a historic transformation. With global giants such as Dow, INEOS, Shell, and others closing or downsizing key production facilities, the region’s supply landscape is shifting dramatically. By the end of 2027, Europe is expected to lose approximately 4.6 million tons/year of ethylene capacity, directly reshaping the downstream solvent market. Among these, n-Heptane is facing a structural supply shortage, even as demand remains resilient.

Market Restructuring and the Emerging Supply Gap

Recent plant closures highlight this dramatic shift:

Dow will shut down its ethylene cracker in Böhlen, Germany (510,000 t/y capacity) by 2027 INEOS permanently closed its phenol and acetone facilities in Gladbeck, Germany Westlake Chemical ceased operations at its Pernis, Netherlands site (150,000 t/y BPA) Celanese shut down its VAM plant in Frankfurt, Germany

These moves have pushed Europe’s chemical capacity utilization rate down to 74%, the lowest in decades. The resulting contraction in local supply capabilities has amplified the shortage of critical solvents, including n-Heptane, across pharmaceutical, coatings, adhesive, and rubber industries.

Junyuan Petroleum Group’s Advantage: Compliance + Reliability

Amid this uncertainty, Junyuan Petroleum Group provides a stable and fully compliant n-Heptane supply to European customers, backed by REACH registration and stringent quality standards.

Key Advantages:

Full REACH Compliance – Seamless market access for European clients. Stable Production Base – China-based facilities unaffected by Europe’s energy crisis. Cost Competitiveness – Significant advantage vs. European producers (EU natural gas prices are 3.3x higher than the U.S.). High Purity Guarantee – n-Heptane purity reaching 99.9%, meeting the demands of high-end applications.

Core Applications:

Pharmaceuticals – extraction solvent, crystallization medium Coatings & Inks – thinner and cleaning agent Adhesives – reaction medium and diluent Rubber Processing – solvent and extraction agent

Partnership Opportunities: Building Resilient Supply Chains

We offer European partners flexible collaboration models to ensure long-term stability and performance:

Sample Supply & Technical Dossiers – including full REACH documentation Flexible Delivery Solutions – from trial orders to long-term supply contracts Technical Support – tailored application guidance and customized solutions

Conclusion: Turning Market Disruption into Growth

The restructuring of Europe’s chemical industry is creating new opportunities in the n-Heptane supply chain. With REACH-certified, high-purity, and cost-effective products, Junyuan Petroleum Group is ready to support European customers in building reliable, sustainable, and future-ready supply networks.

Contact us today to request product details, technical documents, or samples, and secure your competitive advantage in this evolving market.

Industry Transformation Creates Certainty in Uncertain Times

The European chemical industry is undergoing a historic transformation. With global giants such as Dow, INEOS, Shell, and others closing or downsizing key production facilities, the region’s supply landscape is shifting dramatically. By the end of 2027, Europe is expected to lose approximately 4.6 million tons/year of ethylene capacity, directly reshaping the downstream solvent market. Among these, n-Heptane is facing a structural supply shortage, even as demand remains resilient.

Market Restructuring and the Emerging Supply Gap

Recent plant closures highlight this dramatic shift:

Dow will shut down its ethylene cracker in Böhlen, Germany (510,000 t/y capacity) by 2027 INEOS permanently closed its phenol and acetone facilities in Gladbeck, Germany Westlake Chemical ceased operations at its Pernis, Netherlands site (150,000 t/y BPA) Celanese shut down its VAM plant in Frankfurt, Germany

These moves have pushed Europe’s chemical capacity utilization rate down to 74%, the lowest in decades. The resulting contraction in local supply capabilities has amplified the shortage of critical solvents, including n-Heptane, across pharmaceutical, coatings, adhesive, and rubber industries.

Junyuan Petroleum Group’s Advantage: Compliance + Reliability

Amid this uncertainty, Junyuan Petroleum Group provides a stable and fully compliant n-Heptane supply to European customers, backed by REACH registration and stringent quality standards.

Key Advantages:

Full REACH Compliance – Seamless market access for European clients. Stable Production Base – China-based facilities unaffected by Europe’s energy crisis. Cost Competitiveness – Significant advantage vs. European producers (EU natural gas prices are 3.3x higher than the U.S.). High Purity Guarantee – n-Heptane purity reaching 99.9%, meeting the demands of high-end applications.

Core Applications:

Pharmaceuticals – extraction solvent, crystallization medium Coatings & Inks – thinner and cleaning agent Adhesives – reaction medium and diluent Rubber Processing – solvent and extraction agent

Partnership Opportunities: Building Resilient Supply Chains

We offer European partners flexible collaboration models to ensure long-term stability and performance:

Sample Supply & Technical Dossiers – including full REACH documentation Flexible Delivery Solutions – from trial orders to long-term supply contracts Technical Support – tailored application guidance and customized solutions

Conclusion: Turning Market Disruption into Growth

The restructuring of Europe’s chemical industry is creating new opportunities in the n-Heptane supply chain. With REACH-certified, high-purity, and cost-effective products, Junyuan Petroleum Group is ready to support European customers in building reliable, sustainable, and future-ready supply networks.

Contact us today to request product details, technical documents, or samples, and secure your competitive advantage in this evolving market.

On September 5, a delegation from the School of Materials Science & Chemical Engineering of Harbin Engineering University, led by Dean Prof. Yang Piaoping, Party Secretary Wang Jianan, and Vice Dean Prof. Li Junqing, visited Junyuan Petroleum Group for a comprehensive exchange.

The delegation toured Junyuan Petroleum’s central control room, quality inspection center, and production facilities, gaining first-hand insights into the company’s advanced processes and solvent production capabilities. With a product portfolio that includes high-purity n-Pentane, n-Hexane, n-Heptane, as well as eco-friendly blowing agents such as Cyclopentane, Isopentane, and Isobutane, Junyuan Petroleum is committed to supporting innovation in sectors ranging from refrigeration and insulation to pharmaceuticals and adhesives.

During the meeting, both parties shared perspectives on strengthening cooperation in scientific research, breakthrough technologies, and talent development. On behalf of Chairman Mr. Miao Guangfa, Vice General Manager Yu Rui warmly welcomed the delegation and highlighted the Group’s development strategy and future innovation roadmap. Prof. Yang Piaoping introduced the school’s academic strengths, research platforms, and successful cases of technology transfer, expressing strong interest in deeper collaboration.

The two sides reached consensus that this exchange has laid a solid foundation for a long-term strategic partnership. Looking ahead, Junyuan Petroleum Group and Harbin Engineering University will focus on integrating the “innovation chain + industrial chain,” advancing frontier technology research, promoting green and efficient applications of solvents, and cultivating high-level talent. Together, they aim to accelerate industry transformation, contribute to national “dual carbon” goals, and create a new chapter of win-win cooperation between academia and industry.

Keywords: n-Hexane, n-Heptane, Isohexane, CAS Number, HS Code, UN Number, Applications, Chemical Properties, Industrial Use

Abstract

This article provides a comparative analysis of n-Hexane, n-Heptane, and Isohexane in terms of their CAS numbers, HS codes, UN numbers, and practical applications. These hydrocarbons play crucial roles in industrial solvents, fuel additives, and chemical synthesis. Understanding their regulatory classifications and primary uses enables better decision-making in logistics, trade, and compliance.

Introduction

n-Hexane, n-Heptane, and Isohexane are key hydrocarbons used in various industrial applications, particularly in solvent extraction, chemical synthesis, and fuel formulation. While they share similar structures, their distinct properties define their applications and regulatory classifications.

Chemical Identifiers and Classification

Chemical	CAS Number	HS Code	UN Number
n-Hexane	110-54-3	2901.10	UN 1208
n-Heptane	142-82-5	2902.20	UN 1206
Isohexane	107-83-5	2901.10	UN 1262

Each compound has a unique CAS number, which serves as an international identifier in chemical databases. Their HS codes categorize them for international trade purposes, ensuring standardized tariffs and trade policies. The UN numbers indicate transportation hazards and are used for classifying hazardous materials under shipping regulations.

Applications

1. n-Hexane

• Widely used as a solvent in industrial processes such as oil extraction, adhesives, and coatings.
• Commonly found in degreasing agents due to its strong solvency properties.
• Frequently used in laboratory settings for chromatography and chemical synthesis.

2. n-Heptane

• Applied in octane rating determination for fuels, particularly in gasoline standardization.
• Used as a non-polar solvent in chemical and pharmaceutical industries.
• Functions as a cleaning agent for electronics and specialized machinery.

3. Isohexane

• Primarily utilized in gasoline blending as a high-performance fuel component.
• Used in polymer manufacturing and synthetic rubber production.
• Commonly found in formulations requiring controlled volatility characteristics.

Conclusion

n-Hexane, n-Heptane, and Isohexane serve distinct roles in industrial applications, yet share common classifications for trade and regulatory purposes. Understanding their CAS numbers, HS codes, and UN numbers aids in navigating logistics and compliance requirements efficiently. The diverse applications of these hydrocarbons reinforce their significance in industries such as fuel refining, chemical processing, and manufacturing.