CAS 57-87-4PubChem CID 444679
Ergosterol
Ergosterol is a phytosterol consisting of ergostane having double bonds at the 5,6-, 7,8- and 22,23-positions as well as a 3beta-hydroxy group. It has a role as a Saccharomyces cerevisiae metabolite and a fungal metabolite. It is a 3beta-hydroxy-Delta(5)-steroid, a member of phytosterols, a 3beta-sterol and an ergostanoid. — ChEBI
- IUPAC name
- (3S,9S,10R,13R,14R,17R)-17-[(E,2R,5R)-5,6-dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol
- Molecular formula
- C28H44O
- Molecular weight
- 396.6 g/mol
- Exact mass
- 396.339216023 Da
- XLogP3
- 7.4
- Topological polar surface area
- 20.2 Ų
- Hydrogen-bond donors
- 1
- Hydrogen-bond acceptors
- 1
- Covalent units
- 1
- Defined stereocentres
- 8
Also known as
Provitamin D2ErgosterinZ30RAY509F(22E)-ergosta-5,7,22-trien-3beta-olErgosta-5,7,22E-trien-3beta-olProvitamin D 2Ergosta-5,7,22-trien-3beta-ol(22E,24S)-24-methylcholesta-5,7,22-trien-3beta-ol
16 more reported names
CHEBI:16933Pro Vitamin D2Pro-Vitamin D2(3S,9S,10R,13R,14R,17R)-17-((E,2R,5R)-5,6-dimethylhept-3-en-2-yl)-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta(a)phenanthren-3-olD2, Pro-VitaminRefChem:35975200-352-7Ergocalciferol EP Impurity BErgosta-5,7,22-trien-3-ol, (3b,22E)-Ergosterol (Provitamin D2)CCRIS 722024-Methylcholesta-5,7,22-trien-3beta-ol(3S,9S,10R,13R,14R,17R)-17-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-10,13-dimethyl-2,3,4,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol(22e,24r)-ergosta-5,7,22-trien-3beta-ol3beta-Hydroxy-5,7,22-ergostatriene(22E)-Ergosta-5,7,22-trien-3.beta.-ol
External database identifiers
- ChEBI:CHEBI:16933
- ChEMBL:CHEMBL1232562
- EPA DTXSID:DTXSID90878679
- PubMed:23839114
- PubMed:20946868
- PubMed:15930759
- PubMed:11731906
- PubMed:10630115
- PubMed:9862140
- PubMed:6517562
Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.