2934.20.40.00/2-(Morpholinothio)benzothiazole (MBS)/Mexico

2-(Morpholinothio)benzothiazole (MBS) from Mexico

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.

Duty Rate — Mexico → United States

110%

Rate breakdown

9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter

9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter

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Import Tips

• Confirm 98%+ purity to maintain Chapter 29 classification vs mixtures

• Provide end-use statement if customs questions industrial vs retail application

• Check for REACH compliance documentation if transshipping from Europe