1.0 2010-04-08 22:04:56 UTC 2025-11-18 22:30:35 UTC FDB001361 Ostreasterol Constituent of clams and oysters 24-Methylenecholesterol is involved in the biosynthesis of steroids. 24-Methylenecholesterol is converted from 5-Dehydroepisterol by 7-dehydrocholesterol reductase [EC:1.3.1.21]. 24-Methylenecholesterol is converted to Campesterol by delta24-sterol reductase [EC:1.3.1.72]. Ostreasterol is found in common walnut and mollusks. (3b)-Ergosta-5,24(28)-dien-3-ol 24-Methylcholesta-5,24(28)-dien-3beta-ol 24-methylencholesterol 24-methylene-cholest-5-en-3beta-ol 24-methylene-Cholesterol 24-Methylenecholesterol Campestadienol Chalinasterol Cholesterol, 24-methylene- Ergosta-5, 24(28)-dien-3β-ol Ergosta-5, 24(28)-dien-3b-ol ergosta-5,24(28)-dien-3-ol Ergosta-5,24(28)-dien-3-ol, (3β)- Ergosta-5,24(28)-dien-3-ol, (3beta)- (9CI) Ergosta-5,24(28)-dien-3β-ol Ergosta-5,24(28)-dien-3b-ol Ergosta-5,24(28)-dien-3beta-ol Ergosta-5,24(28)-dien-3beta-ol (8CI) Oestreasterol Ostreasterol C28H46O 398.6642 398.354866094 2,15-dimethyl-14-(6-methyl-5-methylideneheptan-2-yl)tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-ol 2,15-dimethyl-14-(6-methyl-5-methylideneheptan-2-yl)tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-ol 474-63-5 CC(C)C(=C)CCC(C)C1CCC2C3CC=C4CC(O)CCC4(C)C3CCC12C InChI=1S/C28H46O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h9,18,20,22-26,29H,3,7-8,10-17H2,1-2,4-6H3 INDVLXYUCBVVKW-UHFFFAOYSA-N belongs to the class of organic compounds known as ergosterols and derivatives. These are steroids containing ergosta-5,7,22-trien-3beta-ol or a derivative thereof, which is based on the 3beta-hydroxylated ergostane skeleton. Ergosterols and derivatives Organic compounds Lipids and lipid-like molecules Steroids and steroid derivatives Ergostane steroids Aliphatic homopolycyclic compounds 3-hydroxy delta-5-steroids Cyclic alcohols and derivatives Delta-5-steroids Hydrocarbon derivatives Secondary alcohols 3-hydroxy-delta-5-steroid 3-hydroxysteroid Alcohol Aliphatic homopolycyclic compound Cyclic alcohol Delta-5-steroid Ergosterol-skeleton Hydrocarbon derivative Hydroxysteroid Organic oxygen compound Organooxygen compound Secondary alcohol a steroid Solid logp 6.61 ALOGPS logs -6.32 ALOGPS solubility 1.90e-04 g/l ALOGPS melting_point Mp 142-143° logp 7.05 ChemAxon pka_strongest_acidic 18.2 ChemAxon pka_strongest_basic -1.4 ChemAxon iupac 2,15-dimethyl-14-(6-methyl-5-methylideneheptan-2-yl)tetracyclo[8.7.0.0^{2,7}.0^{11,15}]heptadec-7-en-5-ol ChemAxon average_mass 398.6642 ChemAxon mono_mass 398.354866094 ChemAxon smiles CC(C)C(=C)CCC(C)C1CCC2C3CC=C4CC(O)CCC4(C)C3CCC12C ChemAxon formula C28H46O ChemAxon inchi InChI=1S/C28H46O/c1-18(2)19(3)7-8-20(4)24-11-12-25-23-10-9-21-17-22(29)13-15-27(21,5)26(23)14-16-28(24,25)6/h9,18,20,22-26,29H,3,7-8,10-17H2,1-2,4-6H3 ChemAxon inchikey INDVLXYUCBVVKW-UHFFFAOYSA-N ChemAxon polar_surface_area 20.23 ChemAxon refractivity 124.94 ChemAxon polarizability 50.9 ChemAxon rotatable_bond_count 5 ChemAxon acceptor_count 1 ChemAxon donor_count 1 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::MsMs 20684 Specdb::MsMs 20685 Specdb::MsMs 20686 Specdb::MsMs 22235 Specdb::MsMs 22236 Specdb::MsMs 22237 HMDB06849 19812 Common walnut Type 1 specific Juglans regia 51240 0.175 0.175 0.175 mg/100 g Eggplant Type 1 specific Solanum melongena 4111 Mollusks Unknown generic 6447 7-dehydrocholesterol reductase Q9UBM7 DHCR7