Vitamin B1, two forms Thiamine Hydrochloride and Thiamine Mononitrate, CAS no.67-03-8 and CAS 532-43-4, white or almost white, crystalline powder or small, colorless crystals. Sparingly soluble in water, freely soluble in boiling water, slightly soluble in alcohol and in methanol. Vitamin B1 (Thiamine Hydrochloride and Thiamine Mononitrate) can be used as supplement in food, feed and pharmaceuticals. As an experienced Thiamine Hydrochloride and Thiamine Mononitrate manufacturer and supplier, we has been supplying and exporting Thiamine Hydrochloride and Thiamine Mononitrate for almost 10 years, please be assured to buy from us. Any inquiries about price and the market trend please feel free to contact us, we will reply you within 1 working day. Vitamin B1(Thiamine Hydrochloride and Thiamine Mononitrate) Specification ITEM STANDARD Appearance White or almost white, crystalline powder or colourless crystals Identification IR,Characteristic Reaction and Test of chlorides Assay 98.5-101.0 pH 2.7-3.3 Absorbance of solution 0.025 Solubility Freely Soluble in Water,Soluble in Glycerol,Slightly Soluble in Alcohol Appearance of solution Clear and not more than Y7 Sulphates 300PPM Limit of nitrate No brown ring is produced Heavy metals 20 PPM Related substances Any impurity % 0.4 Water 5.0 Sulphated ash/Residueon ignition 0.1 Chromatographic purity 1.0