Dienogest

地诺孕素

Also known as: (17β)-17-Hydroxy-3-oxo-19-norpregna-4,9-diene-21-nitrile, 17α-Cyanomethyl-17β-hydroxyestra-4,9-dien-3-one, STS 557, Endometrion, Dienogestril

Dienogest (CAS 65928-58-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H25NO2 and a molecular weight of 311.418 g/mol. It is also known as (17β)-17-Hydroxy-3-oxo-19-norpregna-4,9-diene-21-nitrile, 17α-Cyanomethyl-17β-hydroxyestra-4,9-dien-3-one and STS 557. Key properties include a melting point of 210-214ºC, a boiling point of 549.0±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 285.8±30.1 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
65928-58-7
Jingsj CID
J-1957196-8
Molecular Formula
C20H25NO2
Chinese Name
地诺孕素
Molecular Weight
311.418 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point210-214ºC
Boiling Point549.0±50.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point285.8±30.1 °C

GHS Safety & Compliance

Health HazardSignal word: Warning

Frequently Asked Questions

What is the CAS number of Dienogest?

The CAS number of Dienogest is 65928-58-7.

What are the molecular formula and molecular weight of Dienogest?

Dienogest has molecular formula C20H25NO2 and molecular weight 311.418 g/mol.

Is Dienogest hazardous?

Dienogest has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Dienogest (CAS 65928-58-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1957196-8 (accessed 2026-10-25).

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