Product Details: Grade StandardMedicine Grade, Food Grade Packaging Size25Kg Packaging TypeDrum Physical StatePowder Purity (in %)99 TypePowder Vitamine D3, Cholecalciferol CAS No.:67-97-0 Molecular Weight:384.64 Molecular Formula:C27H44O Purity:99.92 % Long Term Storage:2-8° C The vitamin that mediates intestinal calcium absorbtion, bone calcium metabolism and probably, muscle activity. Occurs in and is isolated from fish liver oils. Vitamin D acts through a receptor that is a member of the ligand-dependent transcription factor