2-(Thiocyanatomethylthio)benzothiazole

2-(Thiocyanatomethylthio)benzothiazole, commonly known as TCMTB and sold under trade names including Busan 72, Busan 15, and Busan 72A, is a heterocyclic organosulfur compound registered under CAS 21564-17-0 and EC 244-445-0. It carries no E-code designation and is classified under HS code 29342000.

TCMTB functions as a broad-spectrum biocide by releasing thiocyanate groups that disrupt microbial enzyme activity, inhibiting the growth of bacteria, fungi, and algae. It is applied in leather processing to protect hides during wet storage, in textile manufacturing to prevent microbial degradation of fibres, and in paper and pulp systems to control slime-forming organisms in process water.

The compound is supplied as an oily liquid and is available in technical grade formulations for industrial use. It falls under REACH regulation and requires a Safety Data Sheet compliant with EU standards. Procurement enquiries should confirm concentration, packaging format, and applicable biocidal product authorisation requirements under BPR (EU) 528/2012.