Application:
Calcifediol is a Vitamin D3 analog for the Pharmaceutical and Veterinary industry. Calcifediol is especially used to prevent and treat osteoporosis or decalcification of bones. The substance is also active against other bone growth disorders such as rickets, osteomalacia and specific liver and parathyroid glands abnormalities. It is also used for the treatment and prevention of secondary hyperparathyroidism associated with chronic kidney disease (CKD).

Specification:
Names: Calcifediol; 25-hydroxyvitamin D3;25-hydroxycholecalciferol; 25-HCC
Content Calcifediol (HPLC) is 97.0-102.0%

CAS: 63283-36-3 (monohydrate), 19356-17-3 (anhydrous)

Regulatory: CEP/CoS and DMF available

ARS - Working Standard:
Calcifediol – CAS no. 63283-36-3

Available Impurities:
Impurity A (25-hydroxylumisterol) - CAS no 61585-29-3
Impurity B (25-hydroxy-7-dehydrocholesterol) - CAS no. 22145-68-2
Impurity C (25-hydroxytachysterol) – CAS no. 39932-44-0
Impurity D (trans-25-hydroxyvitamin D3) – CAS no. 1233749-00-2