Tert-Butylbenzene from Canada
Tert-butylbenzene has a tertiary butyl group providing steric bulk, used in polymerization regulators. Classified HTS 2902.90.30 as alkylbenzene isomer. Quaternary carbon prevents certain substitution reactions.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• High boiling point (169°C) allows standard drum shipping without cooling
• UV stabilizer properties require light-proof packaging specification
• Distinguish from cumene by GC retention time documentation