Category n-Heptane

A row of large industrial storage tanks at a manufacturing facility, designated for n-Hexane, n-Heptane, and Isohexane.

Comparison of n-Hexane, n-Heptane, and Isohexane: CAS Numbers, HS Codes, UN Numbers, and Applications

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

ChemicalCAS NumberHS CodeUN Number
n-Hexane110-54-32901.10UN 1208
n-Heptane142-82-52902.20UN 1206
Isohexane107-83-52901.10UN 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.

Aerial view of a high-purity n-Heptane and n-Hexane production facility in China, showcasing industrial-scale manufacturing and advanced refining infrastructure.

China’s Leadership in High-Purity n-Heptane & n-Hexane – Capacity Growth and Global Impact

Technology Advancements and Capacity Expansion

Beijing, China — The global market for high-purity normal heptane (n-Heptane) and normal hexane (n-Hexane) is undergoing a transformation, driven by technological advancements and increased production capacities. Leading petrochemical companies are investing in cutting-edge refining technologies to enhance efficiency and meet the growing demand from high-value industries.

n-Heptane and n-Hexane are widely used in pharmaceuticals, electronics, and chemical synthesis, where high purity is critical. The demand for these solvents has surged due to growth in semiconductor manufacturing, OLED displays, and precision chemical applications.

Traditionally, the market has been dominated by key players such as Chevron Phillips Chemical (U.S.), Junyuan Petroleum Group (China), Haltermann (Germany), TOA Oil (Japan), and SK Global Chemical (South Korea). However, recent developments in Asia have introduced new competitors with significant capacity expansions, reshaping the global supply landscape.

Technological Advancements and Increased Production

Several industry leaders have implemented next-generation separation processes such as continuous distillation and simulated moving bed technology, enabling 99%+ purity for n-Heptane and n-Hexane while reducing production costs.

“Our proprietary refining technology enhances yield efficiency by 20%, allowing us to offer high-purity n-Heptane at competitive prices,” stated a company representative.

Market Impact and Future Outlook

With rising global supply stability, analysts predict continued growth in the high-purity solvent market, particularly in Asia. Increased production capacity is expected to stabilize pricing, while advances in green chemistry—including carbon-neutral processes and VOC emission reductions—will shape future regulatory and environmental trends.

As international demand for ultra-pure petrochemical solvents rises, manufacturers are poised to enhance quality, reduce costs, and introduce sustainable practices, ensuring continued market leadership.

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