Vitamin D3 Pharmaceutical Grade Cholecalciferol Crystal 40,000,000 IU/g

Product name Vitamin D3 Pharmaceutical Grade Crystal 40,000,000 IU/g Synonyms Cholecalciferol Molecular Formula C27H44O Molecular Weight 384.64 CAS Registry Number 67-97-0 (8050-67-7;8024-19-9) Melting point 82-87 ºC Alpha 105 º (c=0.8, EtOH 25 ºC) Water solubility <0.1 g/L (20 ºC) Description White, free-flowing powder Fineness 100% through 40 mesh 90% through 60 mesh 45% through 100 mesh ANALYSIS SPECIFICATION RESULT Appearance: White or almost white crystals Complies Identification: EP/USP Complies Solubility: Practically insoluble in water, freely soluble in ethanol(96%), soluble in trimethylpentane and in fatty oils Complies Specific optical rotation: +105.0o~ +112.0o 109.0o Residual solvents: Methanol: NMT 3000 ppm 32 ppm Hexane: NMT 290 ppm 10 ppm Methyl formate: NMT 100 ppm 19 ppm Acetone: NMT 5000 ppm 6 ppm Benzene: NMT 2 ppm Not detected Related substances: Trams- vitamin D3: NMT 0.10% Complies Pro- vitamin D3: NMT 0.10% Complies Lumisterol3: NMT 0.10% Not detected Iso-tachysterol3: NMT 0.10% Not detected Tachysterol3: NMT 0.10% Not detected Unspecified impurities: NMT 0.10% Not detected Total impurities: NMT 1.00% Complies Assay: 97.0%~103.0% 38,800,000~41,200,000IU/g 100.0% 40,000,000IU/g