Supplement, Chemicals, Plant Extracts manufacturer / supplier in China, offering Factory Supply Thiamine HCl CAS: 532-43-4 Vitamin B1 Powder for Nutrient, Nutritional Supplements CAS. 532-43-4 Thiamine Nitrate Vitamin B1, Nutritional Supplements CAS. 67-03-8 Thiamine Hydrochloride Vitamin B1 with ISO and so on.