4-Phenylpyridine from China
4-Phenylpyridine serves as an intermediate for pharmaceuticals and liquid crystal materials, featuring an unfused pyridine ring with phenyl substitution. Classified in HTS 2933.39.61.91 as a note 3 substance meeting heterocyclic nitrogen compound criteria. Chemically defined without excluded Chapter 29 mixtures or preparations.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Include synthesis route declaration to verify not DEA controlled substance precursor
• Specify melting point (78-80°C) and HPLC purity in certificate of analysis
• Ensure proper ventilation labeling for sublimation hazard during storage