Category:
Intermediates&Fine Chemicals
CAS NO:
511-28-4
Standard:
In-house Standards,
vitamin-D intermediate
Vitamin D4, also known as 22-dihydroergocalciferol, is a fat-soluble secosteroid synthesized via photochemical irradiation of ergosterol derivatives. Its molecular formula is C28H44O with CAS No. 67-97-0.
Maintain storage below 25°C in dark, inert atmospheres to prevent oxidation. Avoid direct human consumption without medical supervision due to potential hypercalcemia risks associated with overdose.