sec-Butylbenzene from Mexico
sec-Butylbenzene has a secondary butyl group on the benzene ring, serving as precursor for styrene derivatives. Classified in HTS 2902.90.30 as an alkylbenzene isomer meeting purity standards of Chapter 29. Its branched structure provides specific reactivity profiles.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide chiral analysis if enantiomerically enriched for research applications
• UN 1942 classification; require grounding wires on metal containers
• Document distillation cuts separating from n-butylbenzene contaminants