Methyl 3-oxo-4-androstene-17β-carboxylate

Also known as: Methyl (17β)-3-oxoandrost-4-ene-17-carboxylate, Methyl 4-androsten-3-one-17β-carboxylate, Methyl-3-oxo-4-androstene-17β-carboxylate, Androst-4-ene-17-carboxylic acid, 3-oxo-, methyl ester, (17β)-, (8S,9S,10R,13S,14S,17S)-Methyl 10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-17-carboxylate

Methyl 3-oxo-4-androstene-17β-carboxylate (CAS 2681-55-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C21H30O3 and a molecular weight of 330.461 g/mol. Key properties include a boiling point of 441.8±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 191.5±28.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2681-55-2
Jingsj CID: J-1485344-2
Molecular Formula: C₂₁H₃₀O₃
Molecular Weight: 330.461 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	441.8±45.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	191.5±28.8 °C
Exact Mass	330.219482
PSA	43.37000
LogP	4.37
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.541

Customs & Trade Information

HS Code	2937290090

Frequently Asked Questions

What is the CAS number of Methyl 3-oxo-4-androstene-17β-carboxylate?

The CAS number of Methyl 3-oxo-4-androstene-17β-carboxylate is 2681-55-2.

What are the molecular formula and molecular weight of Methyl 3-oxo-4-androstene-17β-carboxylate?

Methyl 3-oxo-4-androstene-17β-carboxylate has molecular formula C21H30O3 and molecular weight 330.461 g/mol.

What are the upstream and downstream products of Methyl 3-oxo-4-androstene-17β-carboxylate?

For Methyl 3-oxo-4-androstene-17β-carboxylate, Upstream Products: Pregnenolone, Deoxycorticosterone, Pregnenolone acetate; Downstream Products: 3-Oxoandrost-4-ene-17β-carboxylic acid, N-tert-butyl-4-androsten-3-one-17β-carboxamide, Epristeride.

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. "Methyl 3-oxo-4-androstene-17β-carboxylate (CAS 2681-55-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1485344-2 (accessed 2026-11-09).

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