... .3, USP32 4. 67-97-0 Description Vitamin D3 Crystal Pharma Grade, obtained from esterification, hydrolyzation and refining of high potency vitamin ... absorption of calcium and phosphorus.PackingAluminum bags lined with food grade polyethene bags, then packaged into HDPE drums. 100g per bag ... heat.The shelf life is 24 months. Vitamin D3 Crystal Pharma Grade