Calcitriol EP Impurity A

5,6-反式-骨化三醇

Also known as: 5,6-trans-Calcitriol, 5,6-trans-1a,25-Dihydroxyvitamin D3, 1α,25-Dihydroxy-5,6-trans-vitamin D3, (1α,3β,5E,7E)-9,10-Secocholesta-5,7,10(19)-triene-1,3,25-triol, (1R,3S,5E)-4-Methylene-5-[(2E)-2-[(1R,3aS,7aR)-octahydro-1-[(1R)-5-hydroxy-1,5-dimethylhexyl]-7a-methyl-4H-inden-4-ylidene]ethylidene]-1,3-cyclohexanediol, Calcitriol Impurity 1, Calcitriol Impurity A

Calcitriol EP Impurity A (CAS 73837-24-8) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C27H44O3 and a molecular weight of 416.637 g/mol. It is also known as 5,6-trans-Calcitriol, 5,6-trans-1a,25-Dihydroxyvitamin D3 and 1α,25-Dihydroxy-5,6-trans-vitamin D3. Key properties include a boiling point of 565.0±50.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 238.4±24.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 73837-24-8
Jingsj CID: J-1986933-9
Molecular Formula: C₂₇H₄₄O₃
Chinese Name: 5,6-反式-骨化三醇
Molecular Weight: 416.637 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	565.0±50.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	238.4±24.7 °C

Frequently Asked Questions

What is the CAS number of Calcitriol EP Impurity A?

The CAS number of Calcitriol EP Impurity A is 73837-24-8.

What are the molecular formula and molecular weight of Calcitriol EP Impurity A?

Calcitriol EP Impurity A has molecular formula C27H44O3 and molecular weight 416.637 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. "Calcitriol EP Impurity A (CAS 73837-24-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1986933-9 (accessed 2026-10-24).

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