Calcium content(Ca) % 8.2-8.6 Nitrogen content (N) % 5.7-6.0 Specific rotation[a] Dt +25-+27.5 Heavy metal (counting Pb) % 0.002max Loss on drying % 5.0max Properties: White powder, no smell, light bitter, moisture absorption. The water solution is neutral or weakly alkaline. It is easy to solve in water, difficult in ethanol, almost not in chloroform or aether.  Package: 25kgs/ paper drum Annual production capacity: 1000MT/year Now we mainly manufacture and export D-calcium pantothenate (Vitamin B5), Vitamin K3 (MSB and MNB), basic chromium sulphate, beta-alanine, Allicin, L-pantolactone etc. Meantime we trade some other vitamins.  Please feel free to contact us for more details.  HS Code:   29362400  Trademark:  SDDH  Productivity:  1000MT/year  Origin:  China  Packing:  Drum  Company:  Shandong Dahua Guangji Biochemical Engineering Co., Ltd.