2930.90.71.00/Dibutylthiourea Powder/Mexico

Dibutylthiourea Powder from Mexico

Pure dibutylthiourea in powdered form, a chemically defined organo-sulfur compound used primarily as a rubber accelerator in tire manufacturing. It falls under HTS 2930.90.71.00 as it is specifically enumerated within heading 2930 for organo-sulfur compounds other than those excluded. The product contains sulfur directly linked to carbon atoms, fitting Chapter 29 note definitions.

Duty Rate — Mexico → United States

10%

Rate breakdown

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

• Provide detailed chemical analysis and Certificate of Analysis (CoA) confirming 99%+ purity to avoid reclassification as a mixture under 3824

• Ensure SDS includes GHS hazard classification as it may be skin sensitizing; comply with TSCA registration for chemical imports

• Declare exact CAS number (5392-85-6) on commercial invoice to match HTS specificity and prevent duty disputes