2(3H)-Benzothiazolethione, potassium salt 2-Benzothiazolethiol, potassium salt 2-Mercaptobenzothiazole, potassium salt 7778-70-3 NSC166397 Potassium 2-mercaptobenzothiazolate Potassium 2-mercaptobenzothiazole Potassium mercaptobenzothiazole salt