7-Dehydrocholesterol

7-去氢胆固醇

Also known as: (3β)-Cholesta-5,7-dien-3-ol, Cholesta-5,7-dien-3β-ol, Provitamin D3, Provitamine, 3β-Hydroxy-5,7-cholestadiene, 7-DHC, (-)-7-Dehydrocholesterol

7-Dehydrocholesterol (CAS 434-16-2) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C27H44O and a molecular weight of 384.638 g/mol. It is also known as (3β)-Cholesta-5,7-dien-3-ol, Cholesta-5,7-dien-3β-ol and Provitamin D3. Key properties include a melting point of 148-152 °C(lit.), a boiling point of 493.7±34.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 212.3±17.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
434-16-2
Jingsj CID
J-11812-3
Molecular Formula
C27H44O
Chinese Name
7-去氢胆固醇
Molecular Weight
384.638 g/mol
Category
Alcohols
Last updated
8/21/2026

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Physicochemical Properties

Melting Point148-152 °C(lit.)
Boiling Point493.7±34.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point212.3±17.9 °C

Frequently Asked Questions

What is the CAS number of 7-Dehydrocholesterol?

The CAS number of 7-Dehydrocholesterol is 434-16-2.

What are the molecular formula and molecular weight of 7-Dehydrocholesterol?

7-Dehydrocholesterol has molecular formula C27H44O and molecular weight 384.638 g/mol.

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

Last updated:

How to cite: Jingsj. "7-Dehydrocholesterol (CAS 434-16-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11812-3 (accessed 2026-10-24).

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