n-Heptane

n-Heptane (CAS No.: 142-82-5) is a straight-chain saturated alkane containing seven carbon atoms, typically isolated from petroleum fractions. It is chemically stable with good solvency for organic substances such as oils, rubbers, and resins, but is virtually insoluble in water. In the petrochemical industry, because its octane number is defined as zero, a mixture of n-heptane and isooctane is used as a standard reference fuel for determining the octane rating of gasoline, serving as the benchmark for measuring fuel anti-knock performance. As an industrial solvent, it is widely used in degreasing and cleaning processes in the paint, coating, paint remover, adhesive, and rubber industries. In chemical synthesis, it serves as a starting material for producing certain chemicals (e.g., heptanone, heptanoic acid). Furthermore, high-purity n-heptane is commonly used as a solvent and standard substance in gas chromatography analysis in laboratories. Our product, manufactured in Shandong, China, has a purity of ≥97.0% (higher purity grades such as chromatographic grade are available), features a narrow boiling range and low non-alkane impurity content, and offers stable quality to meet diverse needs in fuel testing, industrial cleaning, synthesis, and analytical testing.