(1)ProductNiacinamide ascorbate complex (ascorbic acid niacinamide complex) (2)Mol. Wt.298.25 (3)Chemical formulaC12h14n2o7 (4)Cas no. 1987-71-9 (6)SpecificationsAs per f.C.C. (7)DescriptionOff white / yellowish crystalline Powder. (8)Particle size40 mesh to 80 mesh. (9)Assay (purity)Ascorbic acid73.5% Niacinamide24.5% Total99.0% (10)Melting range141c – 145c (11)Loss on drying (lod)Not more than 0.5% (12)Heavy metalsLess than 5 ppm. (13)ArsenicLess than 1 ppm. (14)Residue on ignitionNot more than 0.1% (15)Organic volatileAs per u.S.P. (nil) Impurities (ovi)   (16)Solubility1 gm., is soluble in 3.5 ml of water at 25c. 1 gm., is soluble in 20 ml of alcohol at 25c. Slightly soluble in chloroform. Sparingly soluble in glycerin. Packing & storage: Light sensitive; oxygen sensitive To be packed & preserved in well closed and light-resistant containers. 20 kgs. / 25 kgs., hdpe / fibre drums With double pe liners.