2931.59.00.20/O-Isopropyl Methylphosphonochloridate/Japan

O-Isopropyl Methylphosphonochloridate from Japan

O-Isopropyl methylphosphonochloridate is a halogenated organo-phosphorus compound featuring a phosphorus atom bonded to chlorine, carbon, and oxygen in an isopropyl ester group. It falls under HTS 2931.59.0020 as a specific chemically defined organo-inorganic compound with direct P-C and P-Cl bonds, excluded from sulfonated/halogenated derivatives of other headings. Primarily used as a key intermediate in synthesizing organophosphate compounds.

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%

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Import Tips

• Obtain DEA permits if precursor status applies; verify Chemical Weapons Convention compliance for phosphonyl chlorides

• Provide detailed chemical purity certificates and SDS; ensure UN-approved packaging for corrosive liquids

• Avoid misclassification as pesticide intermediate (3808); confirm P-C bond presence for Chapter 29 eligibility