1.0 2010-04-08 22:14:25 UTC 2025-11-19 02:20:30 UTC FDB019542 Ascorbyl palmitate Antioxidant Ascorbyl palmitate is an ester formed from ascorbic acid and palmitic acid creating a fat-soluble form of vitamin C. In addition to its use as a source of vitamin C, it is also used as an antioxidant food additive (E number E304). Oral supplements of ascorbyl palmitate are less effective, due to the substance breaking down again into its components before being digested. Ascorbyl palmitate is also marketed as "vitamin C ester. 6-Hexadecanoyl-L-ascorbic acid 6-Monopalmitoyl-L-ascorbate 6-Palmitoyl-L-ascorbic acid Ascorbyl palmitate, USAN Ascorbyl palmitic acid Cetyl ascorbate E304 L-Ascorbic acid 6-palmitate L-Ascorbyl 6-palmitate L-ascorbyl monopalmitate L-ascorbyl palmitate Palmitoyl l-ascorbic acid Vitamin c-palmitate C22H38O7 414.5329 414.26175357 2-(3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyethyl hexadecanoate ascorbyl palmitate 137-66-6 CCCCCCCCCCCCCCCC(=O)OCC(O)C1OC(=O)C(O)=C1O InChI=1S/C22H38O7/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-18(24)28-16-17(23)21-19(25)20(26)22(27)29-21/h17,21,23,25-26H,2-16H2,1H3 QAQJMLQRFWZOBN-UHFFFAOYSA-N belongs to the class of organic compounds known as fatty acid esters. These are carboxylic ester derivatives of a fatty acid. Fatty acid esters Organic compounds Lipids and lipid-like molecules Fatty Acyls Fatty acid esters Aliphatic heteromonocyclic compounds Butenolides Carbonyl compounds Dicarboxylic acids and derivatives Enediols Enoate esters Hydrocarbon derivatives Lactones Organic oxides Oxacyclic compounds Secondary alcohols Vinylogous acids 2-furanone Alcohol Aliphatic heteromonocyclic compound Alpha,beta-unsaturated carboxylic ester Carbonyl group Carboxylic acid derivative Carboxylic acid ester Dicarboxylic acid or derivatives Dihydrofuran Enediol Enoate ester Fatty acid ester Hydrocarbon derivative Lactone Organic oxide Organic oxygen compound Organoheterocyclic compound Organooxygen compound Oxacycle Secondary alcohol Vinylogous acid logp 5.23 ALOGPS logs -4.82 ALOGPS solubility 6.21e-03 g/l ALOGPS melting_point Mp 107-117° logp 5.01 ChemAxon pka_strongest_acidic 4.45 ChemAxon pka_strongest_basic -3.6 ChemAxon iupac 2-(3,4-dihydroxy-5-oxo-2,5-dihydrofuran-2-yl)-2-hydroxyethyl hexadecanoate ChemAxon average_mass 414.5329 ChemAxon mono_mass 414.26175357 ChemAxon smiles CCCCCCCCCCCCCCCC(=O)OCC(O)C1OC(=O)C(O)=C1O ChemAxon formula C22H38O7 ChemAxon inchi InChI=1S/C22H38O7/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-18(24)28-16-17(23)21-19(25)20(26)22(27)29-21/h17,21,23,25-26H,2-16H2,1H3 ChemAxon inchikey QAQJMLQRFWZOBN-UHFFFAOYSA-N ChemAxon polar_surface_area 113.29 ChemAxon refractivity 110.62 ChemAxon polarizability 48.59 ChemAxon rotatable_bond_count 18 ChemAxon acceptor_count 5 ChemAxon donor_count 3 ChemAxon physiological_charge -1 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 20531 Specdb::CMs 46616 Specdb::CMs 168183 Specdb::MsMs 52644 Specdb::MsMs 52645 Specdb::MsMs 52646 Specdb::MsMs 148980 Specdb::MsMs 148981 Specdb::MsMs 148982 Specdb::MsMs 2348678 Specdb::MsMs 2348679 Specdb::MsMs 2348680 Specdb::MsMs 2586532 Specdb::MsMs 2586533 Specdb::MsMs 2586534 HMDB39883 #<Reference:0x000055ce31c89e70> #<Reference:0x000055ce31c89cb8> citrus