Ethyl 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylate

度他雄胺EP杂质C

Also known as: Dutasteride EP Impurity C, Dutasteride Impurity 6, Ethyl 3-Oxo-4-aza-5alpha-androst-1-ene-17beta-carboxylate, (4aR,4bS,6aS,7S,9aS,9bS,11aR)-ethyl 4a,6a-dimethyl-2-oxo-2,4a,4b,5,6,6a,7,8,9,9a,9b,10,11,11a-tetradecahydro-1H-indeno[5,4-f]quinoline-7-carboxylate, AHSRUURQZYMTKR-FKLRSJPUSA-N

Ethyl 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylate (CAS 157307-36-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C21H31NO3 and a molecular weight of 345.476 g/mol. It is also known as Dutasteride EP Impurity C, Dutasteride Impurity 6 and Ethyl 3-Oxo-4-aza-5alpha-androst-1-ene-17beta-carboxylate. Key properties include a boiling point of 489.9±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 250.1±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
157307-36-3
Jingsj CID
J-1528000-6
Molecular Formula
C21H31NO3
Chinese Name
度他雄胺EP杂质C
Molecular Weight
345.476 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point489.9±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point250.1±28.7 °C

Frequently Asked Questions

What is the CAS number of Ethyl 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylate?

The CAS number of Ethyl 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylate is 157307-36-3.

What are the molecular formula and molecular weight of Ethyl 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylate?

Ethyl 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylate has molecular formula C21H31NO3 and molecular weight 345.476 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 3-Oxo-4-aza-5α-androst-1-ene-17β-carboxylate (CAS 157307-36-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1528000-6 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.