Pregna-4,6-diene-3,20-dione

孕甾-4,6-二烯-3,20-二酮

Also known as: 6-Dehydroprogesterone, Δ6-Progesterone, Dehydroprogesterone, 4,6-Pregnadiene-3,20-dione, 6,7-Didehydroprogesterone, Dydrogesterone impurity B, Progesterone EP impurity H, MFCD00199858

Pregna-4,6-diene-3,20-dione (CAS 1162-56-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C21H28O2 and a molecular weight of 312.446 g/mol. It is also known as 6-Dehydroprogesterone, Δ6-Progesterone and Dehydroprogesterone. Key properties include a melting point of 146 °C, a boiling point of 462.8±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 172.2±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1162-56-7
Jingsj CID
J-1462477-1
Molecular Formula
C21H28O2
Chinese Name
孕甾-4,6-二烯-3,20-二酮
Molecular Weight
312.446 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point146 °C
Boiling Point462.8±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point172.2±25.7 °C

Frequently Asked Questions

What is the CAS number of Pregna-4,6-diene-3,20-dione?

The CAS number of Pregna-4,6-diene-3,20-dione is 1162-56-7.

What are the molecular formula and molecular weight of Pregna-4,6-diene-3,20-dione?

Pregna-4,6-diene-3,20-dione has molecular formula C21H28O2 and molecular weight 312.446 g/mol.

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

Last updated:

How to cite: Jingsj. "Pregna-4,6-diene-3,20-dione (CAS 1162-56-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1462477-1 (accessed 2026-10-26).

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