2-Mercaptobenzothiazole
2-Mercaptobenzothiazole is a benzothiazole derivative used primarily as a vulcanization accelerator in rubber production. It falls under HTS 2934.20.4000 as a compound containing a benzothiazole ring-system and is specifically listed in additional U.S. note 3 to section VI for chemical compounds subject to special tariff treatment.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If when imported as formulated rubber accelerator mixture >10% by weight
Formulated additives for rubber vulcanization fall under Chapter 38 as chemical preparations rather than pure organic compounds.
If blended with other chemicals for industrial use
Mixtures not chemically defined as single compounds are classified in heading 3824 as other chemical preparations.
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Import Tips & Compliance
• Verify purity certificate to confirm it meets chemically defined compound standards under Chapter 29 notes
• Include safety data sheets (SDS) as benzothiazole compounds may have handling restrictions
• Check additional U.S. note 3 to section VI for any quantitative restrictions or special reporting
Related Products under HTS 2934.20.40.00
N-Cyclohexyl-2-benzothiazolesulfenamide (CBS)
CBS is a delayed-action vulcanization accelerator containing the benzothiazole ring-system, widely used in tire and rubber manufacturing. Classified under HTS 2934.20.4000 per additional U.S. note 3, as it's a specific heterocyclic compound listed for tariff purposes.
Zinc 2-Mercaptobenzothiazole
This zinc salt of 2-mercaptobenzothiazole serves as a rubber accelerator and corrosion inhibitor with the characteristic benzothiazole ring. It qualifies for HTS 2934.20.4000 under additional U.S. note 3 to section VI and Chapter 29 salt classification rules.
2-(Morpholinothio)benzothiazole (MBS)
MBS is a sulfenamide-type benzothiazole accelerator providing scorch safety in rubber compounding, particularly for automotive applications. Falls under HTS 2934.20.4000 as specified in additional U.S. note 3 for pure heterocyclic compounds.
Benzothiazole-2-thiol
Also known as 2-benzothiazolethiol, this compound is a key intermediate and accelerator containing the unfused benzothiazole ring-system. HTS 2934.20.4000 applies per additional U.S. note 3 to section VI for these specifically described products.
N-tert-Butyl-2-benzothiazolesulfenamide (TBBS)
TBBS is a fast-curing rubber accelerator with benzothiazole structure, ideal for tire treads and mechanical goods. Classified in HTS 2934.20.4000 under additional U.S. note 3 for pure benzothiazole compounds.