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n-Hexane is commonly used as an extraction solvent for edible vegetable oils, and can also be used to clean precision electronic and hardware components, as well as to formulate glues and inks. In the laboratory, it serves as a chromatographic elution reagent, and is also used in the synthesis of chemical raw materials and the extraction of active ingredients from Chinese herbal medicines. With its fast volatilization and strong oil-dissolving ability, its applications cover multiple industries including grain and oil, electronics, chemicals, and testing.

n-Hexane is a highly hazardous chemical with an extremely low flash point, making it highly prone to catching fire and exploding. Long-term inhalation of its vapors can cause irreversible peripheral nerve damage, leading to numbness and weakness in the hands and feet; short-term high-concentration inhalation can cause dizziness and coma, and direct contact can damage the skin and eyes. Storage and use require continuous ventilation and proper protection, and waste liquid must be uniformly handled as hazardous waste.

A CAS number is a unique three-part numeric identifier. Issued by the American Chemical Society's Chemical Abstracts Service, every single chemical has only one unique CAS number, unaffected by substance aliases. It is a mandatory identifier for chemical procurement, MSDS preparation, hazardous chemical warehouse filing, transportation customs declaration, and laboratory reagent registration.

n-Hexane is a hazardous chemical (flammable liquid, UN 1208). Different countries have different import access policies for hazardous chemicals, and some countries may restrict the import of specific chemicals.