CAS Number: 67-03-8 Chinese Name: Thiamine Hydrochloride (VB1) English Name: Thiamine Hydrochloride Alias: Thiamine pyrophosphate; Cocarboxylase; Thiamine diphosphate; Thiamine hydrochloride; Vitamin B1 hydrochloride; Thiamine chloride hydrochloride; Thiamine HCl; Vitamin B1 HCl; Aneurine hydrochloride; Vitamin B1 hydrochloride (Thiamine hydrochloride) Content: 98% Molecular Formula: C24H34Cl4N8O2S2 Molecular Weight: 672.5223 EINECS Number: 200-641-8 Package: 25KG/drum Specification: I. GB14751-93 1. Content (dry basis): 98.5%–101.5% 2. Solution color: Not darker than reference color 3. Acidity (pH): 2.7–3.4 4. Nitrate: No brown ring formation 5. Loss on drying: ≤5.0% 6. Residue on ignition (GT-27): ≤0.1% 7. Heavy metals (as Pb): ≤0.002% II. FCC, 1981 1. Content (dry basis): 98.0%–102.0% 2. Aqueous solution color test: Normal 3. Loss on drying (105°C, 2h): ≤5% 4. Nitrite test: Normal 5. pH of 1% aqueous solution: 2.7–3.4 6. Residue on ignition (GT-27): ≤0.2% Usage: For vitamin B1 deficiency Physical Properties: Melting point: 250 °C (dec.)(lit.) FEMA: 3322 Storage conditions: 2-8°C Solubility: H2O: 0.1 g/mL at 20 °C, clear, colorless Water solubility: 1 g/mL Sensitivity: Light Sensitive & Hygroscopic Merck: 14,9295 BRN: 3851771