Category:
Preclinical Research Services
CAS NO:
19356-17-3
Standard:
USP, EP,
Calcifediol Impurity 7 is a reference standard used in pharmaceutical quality control. It serves as a critical marker for detecting related substances during the synthesis and purification of Calcifediol (Vitamin D2 precursor). The compound typically arises from side reactions or incomplete conversion in the photochemical irradiation process involving 7-dehydrocholesterol derivatives.
Store under inert atmosphere at -20°C protected from light. Handle with appropriate PPE as it may be photosensitive. Not intended for direct clinical administration; strictly for laboratory use only.