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19-Nor-4-androstene-3,17-dione

Also known as: Norandrostenedione, Bolandione, Estr-4-ene-3,17-dione, 19-Norandrostenedione, 4-Estren-3,17-dione, 19-Norandrost-4-ene-3,17-dione, Norethisterone Impurity B, 19-NORANDROSTENDIONE, 19-NOR-4-ANDROSTENEDIONE, UNII:U90987PVU5

19-Nor-4-androstene-3,17-dione (CAS 734-32-7) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C18H24O2 and a molecular weight of 272.382 g/mol. Key properties include a melting point of −72 °C(lit.), a boiling point of 433.4±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 161.8±25.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
734-32-7
Jingsj CID
J-29459-7
Molecular Formula
C18H24O2
Molecular Weight
272.382 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−72 °C(lit.)
Boiling Point433.4±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point161.8±25.7 °C
Exact Mass272.177643
PSA34.14000
LogP2.42
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.556
Storage ConditionsRefrigerator
Additional Propertyinsoluble

Frequently Asked Questions

What is the CAS number of 19-Nor-4-androstene-3,17-dione?

The CAS number of 19-Nor-4-androstene-3,17-dione is 734-32-7.

What are the molecular formula and molecular weight of 19-Nor-4-androstene-3,17-dione?

19-Nor-4-androstene-3,17-dione has molecular formula C18H24O2 and molecular weight 272.382 g/mol.

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

Last updated:

How to cite: Jingsj. "19-Nor-4-androstene-3,17-dione (CAS 734-32-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29459-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.