2930.90.71.00/Dibutylthiourea Powder/Japan

Dibutylthiourea Powder from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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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