In the global chemical supply chain, precision, reliability, and purity dictate operational success. Among straight-chain alkanes, n-Heptane stands out as a critical hydrocarbon powering both high-stakes laboratory research and massive industrial manufacturing.

Whether it is utilized as a high-purity n-Heptane solvent in pharmaceutical extractions or serving as the definitive zero-point benchmark in fuel octane rating, this versatile alkane is indispensable. For procurement managers, laboratory directors, and chemical engineers, understanding the technical specifications, safety protocols, and sourcing logistics of n-Heptane is vital to maintaining process efficiency and product integrity.

This comprehensive guide delivers an authoritative overview of n-Heptane, detailing its chemical profile, core industrial applications, regulatory safety standards, and global purchasing best practices.

1. Chemical Properties & Specifications

n-Heptane is a clear, colorless, and volatile liquid hydrocarbon with a characteristic petroleum-like odor. As a straight-chain alkane with the chemical formula C7H16, it is entirely non-polar, making it immiscible in water but highly miscible with most organic solvents.

In commercial and laboratory markets, the compound is generally classified into two primary grades based on its refinement level and intended application: Commercial/Industrial Grade and High-Purity/HPLC Grade.

Technical Specifications Matrix

The table below outlines the core physical and chemical properties differentiating these grades, anchored by its definitive regulatory identifier, CAS 142-82-5.

Property / Specification	Commercial / Industrial Grade	High-Purity / HPLC Grade
Chemical Formula	C7H16	C7H16
CAS Number	142-82-5	142-82-5
Purity (by GC)	Better than or equal to 95.0% to 99.0%	Better than or equal to 99.5%
Molecular Weight	100.21 g/mol	100.21 g/mol
Boiling Point	~98.4°C (209.1°F)	98.4°C (209.1°F)
Melting/Freezing Point	-90.6°C (-131.1°F)	-90.6°C (-131.1°F)
Flash Point	-4°C (24.8°F) (Closed Cup)	-4°C (24.8°F) (Closed Cup)
Density (at 20°C)	0.684 g/mL	0.684 g/mL
Water Content (Karl Fischer)	Less than or equal to 0.02%	Less than or equal to 0.005%
UV Absorbance Background	Not Specified	Strictly Controlled (Optimized for HPLC)

2. Key Industrial Applications of Heptane

The structural stability and predictable behavior of n-Heptane drive its adoption across several multi-billion-dollar industries. Below are the primary industrial applications of heptane that dominate global demand.

1. High-Purity Non-Polar Solvent in Pharmaceuticals and Pesticides

Because of its lack of a molecular dipole moment, n-Heptane solvent is an exceptional vehicle for dissolving non-polar substances like fats, oils, waxes, and resins.

• Pharmaceutical Synthesis: In drug manufacturing, high-purity n-Heptane is widely utilized as a reaction medium and a recrystallization solvent. Its relatively low boiling point (98.4°C) allows for efficient thermal separation and solvent recovery without degrading heat-sensitive active pharmaceutical ingredients (APIs).
• Agrochemicals & Pesticides: It serves as an inert carrier solvent in pesticide formulations, ensuring even distribution of active biological agents while evaporating cleanly post-application.
• Natural Product Extraction: It is increasingly favored over hexane in botanical extractions due to its slightly higher boiling point (which reduces volatile emissions during warm extraction processes) and its lower relative toxicity profile.

2. The Definitive Octane Rating Standard (PRF)

In the energy and automotive sectors, n-Heptane plays a foundational regulatory role. It serves as a Primary Reference Fuel (PRF) to establish the octane rating standard of gasoline.

• The Zero Benchmark: On the anti-knock index scale, n-Heptane is assigned an octane rating of exactly 0. It is highly prone to pre-ignition (knocking) under compression.
• Isooctane Comparison: Conversely, isooctane (2,2,4-trimethylpentane) is assigned an octane rating of 100.
• Fuel Testing: By blending n-Heptane and isooctane in precise volumetric ratios, test engineers replicate the knock resistance of commercial fuels in specialized Coordinated Lubricants Research (CLR) engines. For example, an 87-octane fuel mimics the knocking characteristics of a blend containing 87% isooctane and 13% n-Heptane.

3. Rubber, Polymers, and Adhesive Manufacturing

Industrial-grade heptane blends are heavily consumed in the production of consumer goods and construction materials.

• Adhesive Formulations: n-Heptane acts as a fast-drying solvent carrier in rubber cements, sealants, and industrial tapes. It dissolves the rubber base efficiently, allowing for smooth application, and then rapidly evaporates to leave a secure, high-strength bond.
• Polymer Catalysis: It is used as a diluent or solvent in the polymerization of plastics, particularly in the production of polypropylene and polyethylene, where clean reaction environments are mandatory.

3. Safety, Handling, and Storage

While highly effective, n-Heptane is classified as a hazardous material. Adhering to comprehensive MSDS safety guidelines is legally required and structurally vital for protecting personnel and facility assets.

Primary Hazards

• High Flammability: With a flash point of -4°C, n-Heptane is classified as a Class IB Flammable Liquid. Its vapors are heavier than air, meaning they can travel along floors, accumulate in low-lying areas, and ignite via distant ignition sources or static discharge.
• Acute Inhalation Toxicity: Vapor exposure can cause central nervous system (CNS) depression, presenting as dizziness, headaches, nausea, or anesthesia. High concentrations can lead to loss of consciousness.
• Environmental Hazard: It is classified as highly toxic to aquatic life with long-lasting effects. Spills must be prevented from entering waterways or municipal drainage systems.

Critical Engineering and Handling Protocols

Safety Notice: Always consult the specific manufacturer-issued Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) before configuring processes or handling material.

• Static Mitigation: All transferring, pumping, and blending equipment must be thoroughly grounded and bonded to prevent static electricity build-up, a common trigger for alkane vapor explosions.
• Ventilation: Use only in explosion-proof, enclosed systems or areas equipped with robust local exhaust ventilation capable of maintaining vapor levels well below the Permissible Exposure Limit (PEL) of 500 ppm.
• Storage Requirements: Store in tightly sealed, original containers within a cool, dry, and well-ventilated dedicated flammable liquids cabinet or warehouse. Keep completely isolated from strong oxidizers, open flames, sparks, and direct sunlight.

4. Global Sourcing and Logistics

For chemical procurement managers, securing a reliable supply of high-purity n-Heptane requires evaluating several commercial, logistical, and geographical variables.

Choosing the Right Chemical Supplier

When vetting global manufacturers or distributors, verify the following compliance metrics:

1. Analytical Transparency: Ensure the supplier provides a comprehensive Certificate of Analysis (CoA) for every batch, confirming purity via Gas Chromatography (GC) and detailing trace impurities (such as aromatics or sulfur).
2. Regulatory Alignments: For pharmaceutical use, ensure the supplier complies with current Good Manufacturing Practices (cGMP) or relevant ISO 9001 quality management systems.
3. Supply Chain Continuity: Confirm that the supplier maintains diverse feedstock pipelines to prevent force majeure disruptions during oil and gas market volatility.

B2B Packaging Options

Depending on the volume requirements of your facility, n-Heptane is shipped in several standardized configurations:

• ISO Tanks: Best for large-scale industrial consumers and international shipping. Intermodal ISO tanks hold up to 26,000 liters, offering the lowest per-gallon logistics cost.
• Steel Drums: The standard for mid-sized operations. Typically packaged in 55-gallon (approximately 200-liter) tightly sealed steel drums, fitted with nitrogen blanketing options to preserve purity during storage.
• Laboratory Packaging: High-purity HPLC grade n-Heptane is distributed in smaller glass bottles or specialized 4L to 20L steel cans to maintain ultra-low water and residue benchmarks.

Conclusion & FAQ Section

n-Heptane remains a cornerstone compound within global chemistry, offering the exact non-polar solvency and standard-setting predictability required by modern labs and industrial plants. By prioritizing chemical purity, enforcing rigorous safety measures, and optimizing logistics configurations, procurement and technical teams can ensure safe, efficient, and cost-effective operations.

Frequently Asked Questions

Is n-heptane polar or nonpolar?

n-Heptane is highly nonpolar. It consists entirely of carbon-carbon and carbon-hydrogen single bonds arranged symmetrically in a straight chain. Because carbon and hydrogen have very similar electronegativities, there is no net electrical charge or dipole moment, rendering the molecule completely hydrophobic (immiscible with water).

What is the difference between heptane and n-Heptane?

The term “heptane” can refer generally to any or all of the nine structural isomers sharing the formula C7H16. Conversely, “n-Heptane” (normal-heptane) refers explicitly to the unbranched, straight-chain isomer (CH3(CH2)5CH3). In commercial contexts, generic “heptane” often denotes an industrial blend of various C7 isomers, whereas “n-Heptane” designates a highly refined product isolated to the single straight-chain structure.

What are the hazards of n-Heptane?

The primary hazards associated with n-Heptane are its high flammability (flash point of -4°C), its potential to cause skin irritation upon contact, and the risk of central nervous system depression (dizziness, drowsiness) if its vapors are inhaled in high concentrations. Additionally, it poses a severe aspiration hazard if swallowed and is highly ecotoxic to aquatic environments. Strict adherence to chemical personal protective equipment (PPE) and proper ventilation protocols is required during handling.

• n-Octane, 99%, CAS No. 111-65-9
• Isopentane CAS number and chemical properties
• 60% vs. 80% vs. 99% n‑Hexane: Matching Purity Levels to Industrial Applications
• Locking Q3 n-Heptane Contracts: Why Waiting for a Price Drop Is a Risky Gamble
• n-Heptane Pure

CAS No. 142-82-5 | HPLC/Solvent Grade n-Heptane (99% min)

If you are sourcing high-purity n-Heptane out of Asia this July, you have undoubtedly noticed FOB offers climbing. In some procurement circles, a risky narrative is circulating: “It’s just a temporary market blip—wait it out, and prices will collapse.”

As the region’s leading, largest-scale manufacturer of high-purity n-Heptane, we feel it is our responsibility to provide the ground truth.

Waiting to lock in your Q3 contracts right now isn’t a savvy procurement strategy—it is a high-stakes gamble with your production continuity. Here is why the current market tightness has deep structural roots, and why securing your factory-direct allocation now is the only way to protect your business.

1. Beyond the Turnarounds: The Structural Realignment of Feedstock

Many off-take buyers assume the current rally is purely driven by routine, short-term maintenance at upstream facilities. While those turnarounds triggered the initial supply squeeze, they actually exposed a much larger, permanent shift in the market:

• Rigid Feedstock Control: The precision distillation and molecular sieve adsorption required for 99% min HPLC/Solvent grade n-Heptane rely on highly specific normal paraffin naphtha streams. These streams are increasingly being optimized for internal downstream integration, structurally shrinking the volume available to the open merchant market.
• Surging High-Purity Demand: Global consumption of premium 99% n-Heptane—particularly for pharmaceutical crystallization, advanced electronics manufacturing, and high-performance chromatography—is expanding at a rate that consistently outpaces stable production capacity.

This is not a temporary “trading artifact.” It is a structural tightening that will continue to support the market floor.

2. The Danger of Middlemen Speculation vs. The Reality of Logistics

During a market spike, secondary traders and brokers often amplify panic to secure quick margins. Relying on the spot market or hesitant middlemen during Q3 introduces severe risks to your supply chain:

• The Illusion of Cheap Spot Volume: Brokers may promise lower rates “in a few weeks,” but they cannot guarantee volume or purity when upstream allocations get tight.
• Logistical Priority: Global container availability and shipping schedules remain highly volatile. When supply is tight, logistics networks bottleneck. Secondary traders are always the first to face delays, whereas primary mega-manufacturers hold the freight leverage needed to keep cargo moving.

3. The True Cost of Waiting: Price vs. Guaranteed Availability

In high-precision manufacturing, the most expensive solvent is the one that arrives late—or not at all.

Even as various production units conclude their maintenance cycles heading into late Q3, the backlog of global contract orders is already immense. When new batches hit the market, top-tier manufacturers naturally prioritize long-term contract holders and strategic partners.

Spot buyers who chose to wait on the sidelines will find themselves at the back of the queue, facing severe delivery delays that could disrupt factory operations well into Q4. Saving a marginal percentage on paper means nothing if your production line comes to a halt.

Secure Your Q3 Allocation Directly from the Source

As the largest primary producer of high-purity n-Heptane, we don’t speculate on the market—our massive scale allows us to stabilize it for our global partners. We control the supply chain from raw feedstock to precision distillation, ensuring uncompromised purity and absolute supply security, no matter how volatile the broader market becomes.

Don’t leave your Q3 procurement to the volatility of spot traders. Contact our direct factory export team today to secure guaranteed volumes and predictable pricing.

Connect directly with our logistics and technical experts to secure your premium 99% min n-Heptane allocation.

• FAQ: n-Hexane vs Hexane – Definitions, Properties, and Compliance Notes
• n-Heptane Pure
• Isopentane CAS number and chemical properties
• n-Heptane MSDS | Material Safety Data Sheet
• 60% vs. 80% vs. 99% n‑Hexane: Matching Purity Levels to Industrial Applications

In analytical chemistry, your results are only as reliable as your solvents. Whether you are performing HPLC, GC-MS, or pesticide residue analysis, impurities can lead to baseline noise, ghost peaks, and equipment downtime.¹

Our premium n-Hexane and n-Heptane are refined to exceed industry standards, ensuring the optical clarity and chemical stability your lab requires.

Technical Excellence: Superior UV Transmittance

Solvent transparency in the UV range is critical for detection sensitivity.² Our high-purity n-Hexane undergoes rigorous spectrophotometric testing to ensure minimal interference.

Our UV Absorbance (AU) Specifications (Measured at 10mm Path Length):

• At 220 nm: ≤0.10
• At 230 nm: ≤ 0.05
• At 254 nm: ≤ 0.01

Why Choose Our High-Purity Solvents?

Using high-grade n-Hexane and n-Heptane isn’t just about chemistry; it’s about protecting your workflow.

• Low Evaporation Residue: Extends the life of your columns and prevents detector fouling.
• Strict Moisture Control: Low water content ensures compatibility with moisture-sensitive reactions.
• Consistent Lot-to-Lot Quality: Achieve reproducible results across different batches without recalibrating your methods.

Applications and Industries

Our solvents are trusted by professionals across multiple sectors:

1. Pharmaceuticals: For critical drug testing and organic synthesis.
2. Environmental Testing: Detecting trace contaminants in soil and water.
3. Food Safety: Ideal for extracting oils and testing for pesticide residues.
4. Electronics: Precision cleaning of sensitive optical and electronic components.

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Request a Quote or Technical Data Sheet

Ensure your laboratory operates at peak performance with solvents that set the standard for purity. We offer various packaging sizes, from 4L bottles to bulk drums, to fit your scale.

Contact our technical team today for a COA (Certificate of Analysis) or a competitive quote.

• High Purity Cyclopentane (CAS 287-92-3) | Industrial Blowing Agent & Solvent
• n-Heptane MSDS | Material Safety Data Sheet
• n-Heptane Pure
• n-Hexane – High-Purity Industrial Solvent for Extraction & Organic Synthesi
• The Role of n-Hexane in Edible Oil Production

As of November 1, 2025, the average domestic price of n-Heptane stood at RMB 14,400 per metric ton, representing a week-on-week decrease of RMB 900, or -5.88%. Converted at the current exchange rate of 7.1, the price equals approximately USD 2,028/MT.

This downward movement indicates a short-term correction in the n-Heptane market, primarily due to sluggish demand from the pharmaceutical and fine chemical sectors. While production remained stable, downstream buyers adopted a cautious purchasing strategy amid volatile crude oil costs and declining solvent prices.

Looking ahead, the n-Heptane price trend is expected to remain weak in the short term. However, should crude oil prices stabilize and pharmaceutical sector demand recover, moderate price adjustments may occur in the following weeks.

Market participants also reported increased inventories in major production bases, further exerting pressure on spot prices. In response, traders have been offering discounts to stimulate sales, particularly in East and North China.

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.

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Article Content:

For international buyers, one of the most common questions when sourcing n-Heptane is: “Which countries can exporters ship to?” The answer depends on shipping regulations, chemical handling standards, and the exporter’s logistics capabilities.

1. Global Shipping Overview

Most reputable n-Heptane exporters can ship to a wide range of countries, including:

• North America: United States, Canada, Mexico
• Europe: Germany, France, United Kingdom, Italy, Spain, Netherlands
• Asia: China, India, Japan, South Korea, Singapore
• Middle East: UAE, Saudi Arabia, Israel
• Africa: South Africa, Egypt, Morocco

However, shipping is subject to local chemical import regulations and safety compliance requirements.

2. Regulatory Considerations

n-Heptane is classified as a flammable chemical and is subject to international hazardous materials transport regulations, including:

• UN Number: 1208 (for transport of n-Heptane)
• IMDG Code: For sea transport
• IATA Regulations: For air shipment
• Local Import Permits: Some countries require chemical import licenses or safety documentation

Exporters must ensure all shipments meet these standards to avoid delays or legal issues.

3. Packaging and Shipping Methods

n-Heptane is typically shipped in:

• ISO Tanks: For large volumes (16-16.8 MT per tank)
• Drums: Standard 137 kg drums for smaller shipments
• Palletized Containers: For drums only

Proper packaging ensures safety and compliance during transport.

4. Choosing the Right Exporter

A reliable n-Heptane exporter should provide:

• Documentation for international shipping, including SDS, COA, and customs paperwork
• Expertise in handling hazardous chemicals
• Flexible shipping options for multiple countries

Conclusion

n-Heptane exporters can ship to most industrialized and developing countries, but buyers must verify local regulations and import requirements. Partnering with an experienced exporter ensures smooth delivery, regulatory compliance, and safe handling of flammable chemicals.

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Further Reading and References

For more information on international chemical shipping regulations and safety standards, see:

• UN Recommendations on the Transport of Dangerous Goods
• IATA Dangerous Goods Regulations

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When sourcing n-Heptane from international suppliers, one of the most common questions buyers ask is: “What purity levels are available?” The purity of n-Heptane directly impacts its performance, safety, and suitability for various applications, from industrial solvents to pharmaceutical processes.

1. Common Purity Grades of n-Heptane

Suppliers typically offer n-Heptane in the following purity levels:

• 95% Purity: Often used in industrial applications such as adhesives, coatings, and general solvents. Suitable for processes where ultra-high purity is not required.
• 99% Purity: A widely used grade for laboratories, analytical applications, and some industrial uses. It balances cost and performance.
• 99.5% Purity or Higher: High-purity n-Heptane is commonly used in pharmaceutical, electronic, and specialty chemical industries. This grade meets strict quality standards and is often accompanied by Certificates of Analysis (COA).

2. Why Purity Matters

• Industrial Applications: Lower purity grades may contain hydrocarbons that do not affect general solvent performance but are unsuitable for sensitive processes.
• Pharmaceutical & Laboratory Use: Impurities can affect reactions, product stability, or analytical accuracy. High-purity n-Heptane ensures consistency and compliance with regulatory standards.
• Safety & Handling: Suppliers provide Material Safety Data Sheets (MSDS) indicating handling precautions for each grade.

3. How to Verify Purity

Before purchasing, buyers should request:

• COA (Certificate of Analysis): Confirms the exact purity and identifies impurities.
• MSDS (Material Safety Data Sheet): Provides safety and handling information.
• Sample Testing: Some suppliers provide small sample shipments for testing in your own processes.

4. Choosing the Right Supplier

A reliable n-Heptane supplier should provide:

• Clear documentation of purity levels.
• International shipping options with proper packaging (ISO tanks, drums, pallets).
• Compliance with certifications such as REACH, ISO, or GMP when required.

Conclusion

Understanding the purity levels of n-Heptane is critical for selecting the right grade for your application. Always request documentation and, if possible, test samples to ensure you receive the quality you need. Partnering with a reputable supplier ensures safe, consistent, and compliant n-Heptane delivery for industrial, laboratory, or pharmaceutical purposes.

Further Reading and References

For more detailed technical information on n-Heptane purity standards and applications, you can refer to Junyuan Petroleum Group’s n-Heptane Product Page, which provides comprehensive COA, MSDS, and application notes. Additionally, the PubChem database offers extensive chemical properties and safety data, helping buyers make informed decisions.

With the rapid development of European industry and increasingly strict environmental standards, the demand for high-quality n-Heptane continues to rise. Starting in 2025, Junyuan Petroleum Group, a global leading n-Heptane producer, has officially entered the European market with its REACH certified products, providing reliable, high-purity, and eco-friendly solutions for the pharmaceutical, electronics, coatings, and chemical industries.

Market Opportunities and Trends

The European n-Heptane market is growing rapidly, particularly in pharmaceuticals, automotive, coatings, and electronics, where high-purity (≥99%) and eco-friendly n-Heptane is increasingly required. Despite limited local production and closures of major facilities, Junyuan Petroleum Group’s entry effectively addresses supply gaps, offering stable supply to customers.

Key Applications

• Pharmaceuticals: High-purity n-Heptane is used in drug synthesis, formulation, and chromatography purification.
• Automotive: Solvent for coatings, adhesives, and fuel additives.
• Coatings & Paints: Quick evaporation and strong solvency ensure smooth surfaces.
• Chemicals & Electronics: Used in specialty chemicals, lubricants, and component cleaning.
• Food & Beverage: Extraction and purification of natural flavors and essential oils.

European Market Highlights

• Western Europe Dominance: Germany, France, and the UK have stable industrial demand.
• Emerging Eastern Europe: Poland, Hungary, and the Czech Republic show high growth potential.
• Sustainability Focus: REACH certification is a key market entry requirement, and Europe emphasizes green chemistry.

Strategic Advantage of Junyuan Petroleum Group

Through global production and mature technology, Junyuan Petroleum Group provides high-purity, eco-friendly, and stable supply of n-Heptane, meeting the strict standards of European clients. With full REACH certification since 2025, the n-Heptane market in Europe is poised for comprehensive growth.

Abstract:
n-Heptane (CAS 142-82-5; EC 205-563-8) is a registered substance under the European Union’s REACH regulation, enabling its safe and compliant use across diverse industries. As a mono-constituent substance of petroleum origin, n-Heptane is registered for tonnage bands exceeding 1,000 tonnes per year, ensuring wide availability for European buyers. The REACH registration dossier highlights its extensive applications, including as a solvent in manufacturing, a fuel additive, a component in coatings and adhesives, and in laboratory processes. Businesses sourcing n-Heptane in the EU should request REACH certificates, Safety Data Sheets (SDS), and confirmation of tonnage coverage from suppliers to guarantee regulatory compliance. For downstream users, verifying that specific applications are covered in the supplier’s dossier is crucial, while importers must ensure valid registration via their EU-based entity or Only Representative. With its robust regulatory framework and versatile uses, n-Heptane is positioned as a reliable, compliant, and high-value solvent and process material in the European market.

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n-Heptane and REACH Registration in the EU

n-Heptane has been successfully registered under the EU’s REACH regulation (Registration, Evaluation, Authorisation and Restriction of Chemicals). The registration process ensures that the substance complies with stringent European standards for safety, environmental impact, and responsible use.

• Identifiers:
  • CAS Number: 142-82-5
  • EC Number: 205-563-8
  • Typical Registration Number Format: 01-2119457603-38-xxxx
• Substance Type:
  n-Heptane is registered as a mono-constituent substance, most commonly of petroleum origin.
• Tonnage Band:
  Registrations cover >1,000 tonnes per year, reflecting its broad industrial demand.

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Industrial Applications of n-Heptane

The versatility of n-Heptane makes it an essential material across multiple European industries. Key applications include:

• Solvent in manufacturing processes – widely used in adhesives, coatings, and extraction processes.
• Fuel and fuel additives – supporting clean combustion and blending.
• Cleaning agents – valued for its efficiency in dissolving oils and greases.
• Laboratory applications – as a reference solvent and calibration standard.
• Formulations – incorporated into paints, coatings, and industrial adhesives.

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Compliance Documentation for Buyers

To ensure smooth operations and full compliance, buyers in the EU should request the following documents from suppliers:

1. REACH Certificate – official proof that the product is registered under REACH.
2. Safety Data Sheet (SDS) – including the REACH registration number and hazard/safety guidance.
3. Confirmation of Tonnage Coverage – assurance that the supplier’s registration covers the required quantity and intended use.

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Obligations for Buyers in the EU

• Downstream Users:
  Businesses that use n-Heptane in production must confirm that their applications are included in the supplier’s registration dossier. The SDS will provide this detail.
• Importers:
  If n-Heptane is imported from outside the EU, the responsibility for REACH registration lies with the importer. Alternatively, the non-EU manufacturer can appoint an “Only Representative” to manage registration on their behalf. In both cases, importers should obtain the valid REACH registration number.

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Conclusion

With full REACH registration, n-Heptane is a reliable and compliant material for European industries. Its wide-ranging applications, regulatory approval, and high-volume availability position it as a critical solvent and process chemical. By sourcing from trusted suppliers and ensuring the proper documentation, buyers can secure both regulatory compliance and uninterrupted supply.

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Keywords:
n-Heptane, REACH compliance, European market, solvent, coatings, adhesives, fuel additive, laboratory applications, CAS 142-82-5, EC 205-563-8