We are the earliest and one of the largest specialized manufacturer of D-Glucosamine series products in China. Identification     M.F.: C8H15NO6    M.W.: 221.21    CAS Number: 7512-17-6 Specification:     Appearance: white crystalline powder    Content: 98-102%    Optical rotation: 39-43'    Chlorine: <1%    pH: 5.5-7.5    Loss on drying: <0.5%    Residue on ignition: <0.5%    Heavy metal: 10ppm max.    Arsenic: <10ppm    Melting point: 196-205'C    Ferric salt: 10ppm max. Packing: 25kg cardboard drum We also could produce Granular Grade DC 95% (PVP K-30 or HPMC 5%), the granulationmeets following standard:1. Using 95% Glucosamine Series.2. Using 5% PVP K-30 or HPMC as granulating agent.3. Whole granulating procedure complies with GMP (USA).4. Granular is Direct Compressive, especially for tableting    plants. 

N-acetyl-d-glucosamine