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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If stabilizer exceeds 'necessary for transport' threshold per note (f)
Excessive or multifunctional additives disqualify from Chapter 29, shifting to chemical preparations.
If pre-formulated for direct addition to rubber compounding recipes
Ready-to-use accelerator compositions containing dibutylthiourea classified as 3812 rubber chemicals.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document stabilizer type and concentration (<0.5%) in SDS to qualify under Chapter 29 note (f)
• Use NIOSH-approved packaging for dusty powders; include exposure limits on labeling
• Request binding ruling if stabilizer composition questioned to lock in 2930 classification
Related Products 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.