fatty acid heptanoic acid or the alcohol heptanol. The chemical is used in the synthesis of flavors, perfumes, dyes and resins. Hazards 1-Hexene is considered dangerous because in liquid and vapor form it is highly flammable and may be fatal if swallowed and enters airways. The widespread use of 1-hexene may result in its release to the environment through various waste streams. The substance is toxic to aquatic organisms. References External links Chemical Database, 1-Hexene Alkenes