Category:
Preclinical Research Services
CAS NO:
434-16-2
Standard:
USP, EP,
Cholecalciferol EP Impurity B is a reference standard defined by the European Pharmacopoeia for quality control of Vitamin D3. It represents a specific degradation or synthetic byproduct, essential for validating assay accuracy. Its molecular formula is C27H44O and CAS number is 109856-06-0.
Store in sealed containers at controlled room temperature (15-25°C) away from light. Handle with appropriate PPE to avoid inhalation or skin contact; strictly for analytical use only, not for clinical administration.