Dibutylthiourea
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Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Products classified under HTS 2930.90.71.00
Dibutylthiourea Powder
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.
Dibutylthiourea Flakes (Industrial Grade)
Dibutylthiourea supplied in flake form for industrial rubber vulcanization processes, meeting Chapter 29 requirements for separate chemically defined compounds. Classified specifically under 2930.90.71.00 due to its thiourea structure with sulfur-carbon linkage. Used in synthetic rubber production for automotive belts and hoses.
High-Purity Dibutylthiourea (Lab Grade)
Laboratory-grade dibutylthiourea at 99.5% purity, packaged in small quantities for chemical research and analysis. Meets Chapter 29 criteria as a separate chemically defined organic compound under heading 2930.90.71.00. Used in synthetic organic chemistry and polymer testing applications.
Dibutylthiourea with Stabilizer (Transport Grade)
Dibutylthiourea containing minimal anticaking stabilizer as permitted by Chapter 29 note (f), specifically classified under 2930.90.71.00. Designed for safe bulk transport in rubber industry supply chains. The stabilizer does not alter its primary chemical identity or intended use.