Sodium 2-Mercaptobenzothiazole Powder from Mexico
Pure sodium salt of 2-mercaptobenzothiazole, a heterocyclic compound containing a benzothiazole ring system, supplied as a fine white to pale yellow powder. This chemical is classified under HTS 2934.20.20.00 as it exactly matches the specified compound, whether or not chemically defined, per Chapter 29 notes. It serves as a key reagent in rubber vulcanization and corrosion inhibition.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Verify purity certificate (typically >98%) and CAS number 2492-26-4 for customs clearance; ensure proper Hazard Class 8 labeling for corrosive nature
• Common pitfall: misdeclaration as generic thiol leads to reclassification