Through long-term research by Dr. Wu, a chemist at Beijing Green Hengxing Biotechnology Co., Ltd., a stable synthesis method has been summarized.

Synthetic method 1: Dimethyl sulfide and 3-bromopropionic acid react in a solvent to obtain dimethyl-β-propionic acid thiatin hydrobromide.

Synthetic method two: dimethyl sulfide and 3-chloropropionic acid react in a solvent to obtain dimethyl-β-propionic acid thiatin hydrochloride. Thio