Chloromethylphosphonic Acid from China
Chloromethylphosphonic acid serves as an intermediate in organophosphorus chemistry and metal extractants. Classified in HTS 2931.59.00.80 for its halogenated organo-phosphorus structure with P-CH2Cl functionality. Meets Chapter 29 requirements for chemically defined compounds with direct nonmetal linkages to carbon.
Duty Rate — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Declare as a corrosive hazardous material (UN 3265) with appropriate placarding
• Provide synthetic route documentation to verify P-C bond formation
• Monitor for hydrolysis during storage; include stabilizer information if applicable