Nonene is an alkene with the molecular formula C9H18. Many structural isomers are possible, depending on the location of the C=C double bond and the branching of the other parts of the molecule. Industrially, the most important nonenes are trimers of propene: Tripropylene. This mixture of branched nonenes is used in the alkylation of phenol to produce nonylphenol, a precursor to detergents, which are also controversial pollutants.

Linear nonenes

Linear Nonene
Name1-Nonene2-Nonene3-Nonene4-Nonene
Systematic nameNon-1-eneNon-2-eneNon-3-eneNon-4-ene
Structure
CAS Number124-11-82216-38-8 6434-77-1 (cis) 6434-78-2 (trans)125146-82-9 20237-46-1 (cis) 20063-77-8 (trans)2198-23-4 10405-84-2 (cis) 10405-85-3 (trans)
27215-95-8 (all isomers)
PubChemfromPubChemfromPubChemfromPubChemfromPubChem
Chemical formulaC9H18
Molecular weight126.24 g·mol−1
Melting point−81 °C
Boiling point147 °C144–145 °C147 °C
Density0,73 g·cm−3 (20 °C)0,734 g·cm−3 (25 °C)0,734 g·cm−3 (25 °C)0,73 g·cm−3
GHS hazard pictograms
GHS hazard statementsH226,H304,H315,H319,H335H226H226H226,H304
P261,P301+P310,P305+P351+P338,P331P210,P233,P240,P241,P242,P243,P280,P301,P310 P303+P361+P353,P331,P370+P378,P403+P235,P405,P501