4-Nitrobiphenyl from Mexico
4-Nitrobiphenyl (C12H9NO2) is a nitrated derivative of biphenyl used in research and as a synthetic intermediate. Classified in HTS 2904.20.5000 for its single nitro group on polycyclic aromatic hydrocarbon base. Meets chapter 29 purity requirements.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• TSCA registration required; provide PMN status for new chemical review
• Carcinogen warning labels mandatory—common violation is inadequate SDS
• Ship in amber glass to prevent photodegradation affecting assay results