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CAS 50-28-2

CAS 50-28-2 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 50-28-2
CAS 50-28-2PubChem CID 5757

Estradiol

17beta-estradiol is the 17beta-isomer of estradiol. It has a role as a geroprotector, an estrogen, an EC 1.2.3.1 (aldehyde oxidase) inhibitor, a mouse metabolite, a human metabolite and a Daphnia magna metabolite. It is an estradiol and a 17beta-hydroxy steroid. — ChEBI

IUPAC name
(8R,9S,13S,14S,17S)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol
Molecular formula
C18H24O2
Molecular weight
272.4 g/mol
Exact mass
272.177630004 Da
XLogP3
4.0
Topological polar surface area
40.5 Ų
Hydrogen-bond donors
2
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
5

Also known as

beta-Estradiol17beta-EstradiolOestradiolEstraceDihydrofolliculinAquadiolDiogynetsDivigel
16 more reported names
VivelleDiogynDihydrotheelinDihydroxyestrinDimenformonEstradermFemestralGynoestrylAerodiolClimaraGynergonVagifemEstraldineEstrogelEvorelEstring
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External database identifiers

Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 50-28-2

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How CAS 50-28-2 is used on this site

CAS 50-28-2 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 50-28-2 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.