2-Mercaptobenzothiazole

2-Mercaptobenzothiazole (CAS 149-30-4), also known by trade names Captax, Rotax, and Mertax, and abbreviated as 2-MBT, is a benzothiazole-derived organosulfur compound. It carries no assigned E-code and is classified under HS code 29342020.

In rubber vulcanization, 2-MBT acts as a primary accelerator, reacting with sulfur at elevated temperatures to form crosslinks between polymer chains, reducing cure time and improving elasticity. It also functions as a broad-spectrum biocide in metalworking fluids and industrial water systems by disrupting microbial membrane integrity, and serves as a precursor flavorant compound in certain food applications.

2-Mercaptobenzothiazole is available as a beige to light yellow powder in technical and food-grade specifications, with compliance documentation available for REACH registration. Packaging is offered in standard industrial formats to suit procurement requirements across rubber processing, agricultural, and food industry supply chains.