Thiazole, an organic compound, namely 4-methyl-5-(β-hydroxyethyl)-thiazole. It is light yellow liquid, non-volatile; non-flammable and explosive; non-corrosive; non-toxic. It is soluble in organic solvents such as alcohol, ether, benzene, chloroform, etc., but has a particularly high solubility in water and has an unpleasant smell of thiazole compounds, but has a pleasant smell in very dilute concentrations, and can dissolve with HCl. Hydrochloride in water and alcohol. Thithiazole is the basic structural ring of vitamin VB1 and an important intermediate for the synthesis of VB1. At the same time, it is also a precious spice. It has the aroma of nuts, bean, milk, egg and meat. It is used for nuts, milk Fragrant meat and seasoning essence.