1-Nonene
{{refimprove|date=May 2021}}
{{Chembox
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 405354741
| Name=1-Nonene
| ImageFile=1-nonene.svg
| ImageCaption = 1-Nonene
| PIN=Non-1-ene
| OtherNames=alpha-Nonene
|Section1={{Chembox Identifiers
| CASNo_Ref = {{cascite|correct|CAS}}
| CASNo=124-11-8
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = YPK83LUD6G
| PubChem=31285
| ChEBI_Ref = {{ebicite|correct|EBI}}
| ChEBI = 77443
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 29025
| UNNumber = 1993
| SMILES = C=C\CCCCCCC
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI=1S/C9H18/c1-3-5-7-9-8-6-4-2/h3H,1,4-9H2,2H3
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = JRZJOMJEPLMPRA-UHFFFAOYSA-N
| EINECS = 271-212-0
}}
|Section2={{Chembox Properties
| C=9 | H=18
| Appearance= Colorless liquid
| Odor = Onion-like, grassy
| Density= 0.7433 g/cm3
| MeltingPtC= -81.3
| BoilingPtC= 146.9
| Solubility= Insoluble
| SolubleOther = Soluble in alcohol
| Solvent = other solvents
}}
|Section3={{Chembox Hazards
| MainHazards=
| NFPA-H= 0
| NFPA-F= 3
| NFPA-R= 0
| NFPA-S=
| AutoignitionPt =
| GHSPictograms = {{GHS02}}{{GHS07}}{{GHS08}}
| GHSSignalWord = Danger
| HPhrases = {{H-phrases|226|304|315|319|335}}
| PPhrases = {{P-phrases|210|233|240|241|242|243|261|264|271|280|301+310|302+352|303+361+353|304+340|305+351+338|312|321|331|332+313|337+313|362|370+378|403+233|403+235|405|501}}
}}
}}
1-Nonene is particular structural isomer of nonene where the double bond is located at the primary, or alpha, position making it a linear alpha olefin. It is used in the production of surfactants and lubricants, usually by way of nonylphenol. Its more branched analogue, tripropylene, is also used in this way.