The preparing cartap by route of non-sodium cyanide was studied in the paper.

研究了巴丹的非氰化钠路线合成，采用的合成方法工，原料易得。

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-基苯并噻唑法是先将溴氯甲烷硫氰化钠反应生成硫氰酸氯甲，然后硫氰酸氯甲2-基苯并噻唑反应得到苯噻氰。