Ergocalciferol EP Impurity B CAS 57-87-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.57-87-4
Molecular FormulaC28H44O
Molecular Weight396.65 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ergocalciferol EP Impurity B CAS 57-87-4 chemical structure

Description

Ergocalciferol EP Impurity B (CAS 57-87-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C28H44O. Molecular weight: 396.65 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.

Physical & Chemical Properties

Molecular FormulaC28H44O
Molecular Weight396.65 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1957

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