O-n-Propyl Ethylphosphonofluoridate from Mexico
A specific phosphonofluoridate with n-propyl (C3) O-alkyl and ethyl alkyl groups, directly matching HTS 2931.59.0010's description for halogenated organo-phosphorous derivatives. It qualifies as a separate chemically defined compound under Chapter 29, excluding mixtures or non-pure forms.
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
• Validate alkyl chain (n-propyl ≤C10) with NMR spectra in entry docs; anticipate BIS export control checks
• Avoid pitfall of bulk packaging mistaken for industrial mixtures
• Secure advance CBP ruling for derivative confirmation