It can also be prepared by reaction of bromochloromethane with sodium thiocyanate to obtain chloromethyl thiocyanate, and then it reacts with 2-mercapto-benzothiazole.

另一种2-并噻唑法是先将溴甲与硫化钠反应生成硫甲酯，然后硫甲酯与2-并噻唑反应得到噻。