1,5-hexadiene (CAS 592-42-7) Market Research Report 2025 '@about1,5-Hexadiene is a clear colorless to slightly yellow liquid, with the molecular formula C6H10. It is composed of six carbon atoms and two double bonds. 1,5-Hexadiene is insoluble in water, melting at -141 В°C(lit.) and boiling 60 В°C(lit.). the ...