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Official EU label nameGlossary entry 9915

ERGOSTEROL

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence
Markets checked
13
Markets with evidence
0
Evidence gaps
13
Resolved identifiers
2

Resolved substance identity

CAS:57-87-4
EC:200-352-7
Ingredient index records:
ERGOSTEROL
Cosmetic functions: SKIN CONDITIONING

Ergosta-5,7,22-trien-3-ol, (3.beta., 22E)-

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2 matched or reported names
ERGOSTEROLergosterol

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name ERGOSTEROL.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 57-87-4
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
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External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessmentsFDA Global Substance Registration SystemILO/WHO International Chemical Safety CardsJapan NITE-CHRIPNIOSH Pocket Guide to Chemical HazardsOECD eChemPortalUS EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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