Product Name: Acarbose Synonyms: Glucobay, Precose, Prandase Chemical Name: O-4,6-Dideooxy-4-[[[1S-4R,5S,6S]]-4,5,6-triidroxy-3-(idroxymetyl)-2-cycloesen-1-yl]-amino]-a-D-glucopyranosyl(1,4)-O-a-D-glucopyranosyl-(1,4)-D-glucose CAS No.: 56180-94-0 Molecular Formula: C25H43NO18 Molecular Weight: 645.63 Standard: EP5 (EP V) Specifications: Appearance: White to yellowish, amorphous powder hygroscopic Assay (on dry basis, HPLC): 95.0 - 102.0% Identification (IR, HPCL) : Comply Specific Rotation [a]20D: +168 - +183 PH: 5.5 - 7.5 Loss on Drying: 4%max. Sulphated Ash: 0.2%max. Heavy Metals ( Pb): 20ppm max Total impurities: 3%max. Granularity: 100 mesh min.