Methylphosphonous Dichloride from Mexico
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 — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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