17β-Hydroxy-17-methylandrosta-4,9(11)-dien-3-one

17β-羟基-17-甲基雄甾-4,9(11)-二烯-3-酮

Also known as: Androsta-4,9(11)-dien-3-one, 17-hydroxy-17-methyl-, (17β)-, Delta9(11)-Methyltestosterone, 9(11)-Dehydromethyltestosterone, 4,9(11)-Androstadien-17α-methyl-17β-ol-3-one, 17β-Hydroxy-17α-methylandrosta-4,9(11)-dien-3-one, NSC 3356, U 5261

17β-Hydroxy-17-methylandrosta-4,9(11)-dien-3-one (CAS 1039-17-4) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C20H28O2 and a molecular weight of 300.435 g/mol. It is also known as Androsta-4,9(11)-dien-3-one, 17-hydroxy-17-methyl-, (17β)-, Delta9(11)-Methyltestosterone and 9(11)-Dehydromethyltestosterone. Key properties include a melting point of 169 °C, a boiling point of 448.3±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 191.0±21.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1039-17-4
Jingsj CID
J-43312-3
Molecular Formula
C20H28O2
Chinese Name
17β-羟基-17-甲基雄甾-4,9(11)-二烯-3-酮
Molecular Weight
300.435 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point169 °C
Boiling Point448.3±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point191.0±21.3 °C

Frequently Asked Questions

What is the CAS number of 17β-Hydroxy-17-methylandrosta-4,9(11)-dien-3-one?

The CAS number of 17β-Hydroxy-17-methylandrosta-4,9(11)-dien-3-one is 1039-17-4.

What are the molecular formula and molecular weight of 17β-Hydroxy-17-methylandrosta-4,9(11)-dien-3-one?

17β-Hydroxy-17-methylandrosta-4,9(11)-dien-3-one has molecular formula C20H28O2 and molecular weight 300.435 g/mol.

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

Last updated:

How to cite: Jingsj. "17β-Hydroxy-17-methylandrosta-4,9(11)-dien-3-one (CAS 1039-17-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43312-3 (accessed 2026-10-23).

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