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N-Propyl Methylphosphonate from Japan

Organophosphorus compound with formula CH3P(O)(O CH2CH2CH3)(OR), where R meets the single n-propyl criterion of HTS 2931.49.0055. The phosphorus bears exactly one methyl directly and one n-propyl alkoxy chain. Hydraulic fluid additive and extractant.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Provide viscosity and flash point data for proper hazmat classification (UN1267 or similar)

Verify chain length via HPLC; n-propyl vs iso-propyl affects statistical reporting

Industrial end-use declaration prevents consumer chemical misrouting