3-Propanephosphonic Acid Dichloride from China
3-Propanephosphonic acid dichloride, synonymous with propylphosphonic dichloride, is a reactive P-Cl compound used in phosphorylation reactions. It falls under HTS 2931.52.00.00 due to its halogenated organo-phosphorus structure with direct C-P bond. Primarily employed in synthesizing agrochemicals and surfactants.
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 exact CAS number (16788-52-0) on commercial invoice for verification
• Use UN-approved containers for Class 8 corrosives to prevent spills
• Monitor for REACH-like restrictions if transshipping from EU