1.0 2010-04-08 22:06:16 UTC 2025-11-18 22:56:32 UTC FDB004508 Hex-trans-2-enyl propionate 2-hexenyl propionate, also known as trans-2-hexenyl propionic acid or (E)-2-hexen-1-ol, propanoate, is a member of the class of compounds known as carboxylic acid esters. Carboxylic acid esters are carboxylic acid derivatives in which the carbon atom from the carbonyl group is attached to an alkyl or an aryl moiety through an oxygen atom (forming an ester group). 2-hexenyl propionate is practically insoluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 2-hexenyl propionate has an apple, fruity, and green taste. C9H16O2 156.2221 156.115029756 (2E)-hex-2-en-1-yl propanoate (2E)-hex-2-en-1-yl propanoate CCC\C=C\COC(=O)CC InChI=1S/C9H16O2/c1-3-5-6-7-8-11-9(10)4-2/h6-7H,3-5,8H2,1-2H3/b7-6+ LPWKTEHEFDVAQS-VOTSOKGWSA-N belongs to the class of organic compounds known as carboxylic acid esters. These are carboxylic acid derivatives in which the carbon atom from the carbonyl group is attached to an alkyl or an aryl moiety through an oxygen atom (forming an ester group). Carboxylic acid esters Organic compounds Organic acids and derivatives Carboxylic acids and derivatives Carboxylic acid derivatives Aliphatic acyclic compounds Carbonyl compounds Hydrocarbon derivatives Monocarboxylic acids and derivatives Organic oxides Aliphatic acyclic compound Carbonyl group Carboxylic acid ester Hydrocarbon derivative Monocarboxylic acid or derivatives Organic oxide Organic oxygen compound Organooxygen compound propanoate ester logp 2.83 ALOGPS logs -2.37 ALOGPS solubility 6.59e-01 g/l ALOGPS logp 2.63 ChemAxon pka_strongest_basic -7 ChemAxon iupac (2E)-hex-2-en-1-yl propanoate ChemAxon average_mass 156.2221 ChemAxon mono_mass 156.115029756 ChemAxon smiles CCC\C=C\COC(=O)CC ChemAxon formula C9H16O2 ChemAxon inchi InChI=1S/C9H16O2/c1-3-5-6-7-8-11-9(10)4-2/h6-7H,3-5,8H2,1-2H3/b7-6+ ChemAxon inchikey LPWKTEHEFDVAQS-VOTSOKGWSA-N ChemAxon polar_surface_area 26.3 ChemAxon refractivity 46.08 ChemAxon polarizability 18.8 ChemAxon rotatable_bond_count 6 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 11818 Specdb::CMs 28385 Specdb::CMs 101948 Specdb::CMs 154544 Specdb::MsMs 58389 Specdb::MsMs 58390 Specdb::MsMs 58391 Specdb::MsMs 114318 Specdb::MsMs 114319 Specdb::MsMs 114320 Specdb::MsMs 2291682 Specdb::MsMs 2291683 Specdb::MsMs 2291684 Specdb::MsMs 2643939 Specdb::MsMs 2643940 Specdb::MsMs 2643941 Specdb::MsIr 7861 Specdb::MsIr 7862 HMDB0038272 Black tea Type 1 Green tea Type 1 Herbal tea Type 1 Red tea Type 1 Tea Type 1 specific Camellia sinensis 4442