(8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione

Also known as: Spiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione, Exemestane α-Spirooxirane, Exemestane USP Impurity E+F, Epoxyexemestane (6α,β mixture), (8R,9S,10R,13S,14S)-10,13-dimethyl-7,8,9,10,11,12,13,14,15,16-decahydrospiro[cyclopenta[a]phenanthrene-6,2'-oxirane]-3,17-dione, MFCD19442795

(8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione (CAS 184972-12-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C20H24O3 and a molecular weight of 312.40300 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 184972-12-1
Jingsj CID: J-1516124-7
Molecular Formula: C₂₀H₂₄O₃
Molecular Weight: 312.40300 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	312.17300
PSA	46.67000
LogP	3.24230

Frequently Asked Questions

What is the CAS number of (8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione?

The CAS number of (8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione is 184972-12-1.

What are the molecular formula and molecular weight of (8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione?

(8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione has molecular formula C20H24O3 and molecular weight 312.40300 g/mol.

What are the upstream and downstream products of (8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione?

For (8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione, Upstream Products: Exemestane, Boldenone, Methylene boldenone.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "(8R,9S,10R,13S,14S)-10,13-Dimethylspiro[androsta-1,4-diene-6,2'-oxirane]-3,17-dione (CAS 184972-12-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516124-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.