MBTS Dibenzothiazole Disulfide from Canada
MBTS, derived from 2-Mercaptobenzothiazole, contains two benzothiazole rings linked by disulfide bond, qualifying under HTS 2934.20.1500 provisions. Slow-curing accelerator used in EPDM rubber formulations.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Molecular structure diagrams confirming benzothiazole ring systems required for classification
• Batch purity certificates (>97%) essential to distinguish from technical grade mixtures
• End-use statements specifying rubber vulcanization prevents pesticide misclassification