1.0 2010-04-08 22:07:28 UTC 2025-11-18 23:04:07 UTC FDB007150 trans-Octen-2-al Trans-octen-2-al, also known as (E)-2-octenal or 2-octenal, (E)-isomer, is a member of the class of compounds known as medium-chain aldehydes. Medium-chain aldehydes are an aldehyde with a chain length containing between 6 and 12 carbon atoms. Thus, trans-octen-2-al is considered to be a fatty aldehyde lipid molecule. Trans-octen-2-al is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Trans-octen-2-al can be found in ginger and potato, which makes trans-octen-2-al a potential biomarker for the consumption of these food products. C8H14O 126.199 126.104465071 (2E)-oct-2-enal (E)-2-octenal 2548-87-0 [H]\C(CCCCC)=C(\[H])C=O InChI=1S/C8H14O/c1-2-3-4-5-6-7-8-9/h6-8H,2-5H2,1H3/b7-6+ LVBXEMGDVWVTGY-VOTSOKGWSA-N belongs to the class of organic compounds known as medium-chain aldehydes. These are an aldehyde with a chain length containing between 6 and 12 carbon atoms. Medium-chain aldehydes Organic compounds Organic oxygen compounds Organooxygen compounds Carbonyl compounds Aliphatic acyclic compounds Enals Hydrocarbon derivatives Organic oxides Aliphatic acyclic compound Alpha,beta-unsaturated aldehyde Enal Hydrocarbon derivative Medium-chain aldehyde Organic oxide Fatty aldehydes oct-2-enal logp 2.54 ChemAxon pka_strongest_basic -4.2 ChemAxon iupac (2E)-oct-2-enal ChemAxon average_mass 126.199 ChemAxon mono_mass 126.104465071 ChemAxon smiles [H]\C(CCCCC)=C(\[H])C=O ChemAxon formula C8H14O ChemAxon inchi InChI=1S/C8H14O/c1-2-3-4-5-6-7-8-9/h6-8H,2-5H2,1H3/b7-6+ ChemAxon inchikey LVBXEMGDVWVTGY-VOTSOKGWSA-N ChemAxon polar_surface_area 17.07 ChemAxon refractivity 40.44 ChemAxon polarizability 15.85 ChemAxon rotatable_bond_count 5 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 64383 Specdb::MsMs 64384 Specdb::MsMs 64385 Specdb::MsMs 121521 Specdb::MsMs 121522 Specdb::MsMs 121523 Specdb::MsMs 3603722 Specdb::MsMs 3603723 Specdb::MsMs 3603724 Specdb::MsMs 3603725 Specdb::MsMs 3603726 Specdb::MsMs 3603727 Ginger Type 1 specific Zingiber officinale 94328 Potato Type 1 specific Solanum tuberosum 4113 fat green nut