Santocure TBBS Accelerator

"Santocure TBBS" is a branded form of N-tert-Butyl-2-benzothiazolesulfenamide, a sulfenamide accelerator with the defining benzothiazole ring-system of HTS 2934.20.0500. Widely used in NR and synthetic rubber for optimal scorch safety in tire manufacturing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+10.0%16.5%
🇲🇽Mexico6.5%+10.0%16.5%
🇨🇦Canada6.5%+10.0%16.5%
🇩🇪Germany6.5%+10.0%16.5%
🇯🇵Japan6.5%+10.0%16.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3824.99.39Higher: 35% vs 16.5%

If containing >1% impurities or diluents affecting purity classification

Chemical products not elsewhere specified with significant impurities fall under 3824 rather than pure compounds of Chapter 29.

2934.99Same rate: 16.5%

If another benzothiazole compound without specific N-tert-butyl substitution

Other named benzothiazole derivatives have separate 10-digit codes within the same heading.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Retain brand-specific technical data sheets showing TBBS composition to support classification during verification audits

For bulk imports (>25kg drums), ensure DOT/UN packaging certification; avoid plastic bags that risk dust contamination

Watch for origin marking requirements - chemical name must appear on drums alongside country of manufacture