(17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one

Also known as: (8S,9S,10R,13S,14S,17S)-13-Ethyl-17-hydroxy-11-methylene-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3(2H)-one, (+)-13β-Ethyl-17β-hydroxy-11-methylenegon-4-en-3-one, 18-Methyl-11-methylene-estra-4-ene-3-one-17-ol, Etonogestrel Impurity 10

(17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one (CAS 220332-82-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C20H28O2 and a molecular weight of 300.43500 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 220332-82-1
Jingsj CID: J-1515885-3
Molecular Formula: C₂₀H₂₈O₂
Molecular Weight: 300.43500 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	300.20900
PSA	37.30000
LogP	4.04530

Frequently Asked Questions

What is the CAS number of (17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one?

The CAS number of (17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one is 220332-82-1.

What are the molecular formula and molecular weight of (17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one?

(17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one has molecular formula C20H28O2 and molecular weight 300.43500 g/mol.

What are the upstream and downstream products of (17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one?

For (17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one, Downstream Products: Desogestrel, 13b-ethyl-11-methylenegon-4-en-17-one, 18-Methyl-11-methyleneestr-4-ene-3,17-dione.

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. "(17β)-13-Ethyl-17-hydroxy-11-methylenegon-4-en-3-one (CAS 220332-82-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515885-3 (accessed 2026-11-06).

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