N-Heptane is an organic compound with the chemical formula C7H16. It is a colorless, volatile liquid. It is mainly used as a standard substance for determining octane number, and can also be used as a raw material for anesthetics, solvents, organic synthesis, and the preparation of experimental reagents.

Hazardous characteristics: Flammable, its vapor can form explosive mixtures with air, and there is a risk of combustion and explosion when exposed to heat sources and open flames. Chemical reactions or combustion may occur when in contact with oxidants. High speed impact, flow, and agitation can cause combustion and explosion due to the generation of electrostatic spark discharge. Its vapor is heavier than air and can spread to a considerable distance at lower levels. It will ignite and reignite when exposed to a source of fire.

Storage precautions: Store in a cool and ventilated warehouse. Stay away from sources of fire and heat. The storage temperature should not exceed 30 ℃. Keep the container sealed. It should be stored separately from oxidants and avoid mixing storage. Adopt explosion-proof lighting and ventilation facilities. Prohibit the use of mechanical equipment and tools that are prone to generating sparks. The storage area should be equipped with emergency response equipment for leaks and suitable containment materials.