Methylphosphonous Dichloride from China
CH3PCl2, a trivalent phosphorus compound with one methyl group directly bonded to P, fitting HTS 2931.49.0055 for non-halogenated organophosphorus derivatives. Highly reactive intermediate for phosphonate synthesis.
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
• UN2928 toxic corrosive; requires fume hood handling declaration
• Pyrophoric; ship in ampoules under argon with thermal protection
• CWC precursor; end-user statement mandatory for lab/research import