Nomegestrol

诺美孕酮

Also known as: 17-Hydroxy-6-methyl-19-nor-4,6-pregnadiene-3,20-dione, 19-Norpregna-4,6-diene-3,20-dione, 17-hydroxy-6-methyl-, (17α)-17-Acetyl-17-hydroxy-6-methylestra-4,6-dien-3-one, Nomegestrel

Nomegestrol (CAS 58691-88-6) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C21H28O3 and a molecular weight of 328.45 g/mol. It is also known as 17-Hydroxy-6-methyl-19-nor-4,6-pregnadiene-3,20-dione, 19-Norpregna-4,6-diene-3,20-dione, 17-hydroxy-6-methyl- and (17α)-17-Acetyl-17-hydroxy-6-methylestra-4,6-dien-3-one. Key properties include a melting point of 204-205ºC, a boiling point of 502.6±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 271.8±26.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 58691-88-6
Jingsj CID: J-1091975-2
Molecular Formula: C₂₁H₂₈O₃
Chinese Name: 诺美孕酮
Molecular Weight: 328.45 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	204-205ºC
Boiling Point	502.6±50.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	271.8±26.6 °C

Frequently Asked Questions

What is the CAS number of Nomegestrol?

The CAS number of Nomegestrol is 58691-88-6.

What are the molecular formula and molecular weight of Nomegestrol?

Nomegestrol has molecular formula C21H28O3 and molecular weight 328.45 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Nomegestrol (CAS 58691-88-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1091975-2 (accessed 2026-10-24).

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