O-Isopropyl Methylphosphonochloridate

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.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+10.0%13.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2931.90.30.00Higher: 41.5% vs 13.7%

If sold as technical grade with impurities exceeding specification limits

Impure mixtures may shift from specific compound to 'other organo-inorganic compounds' in 2931.90

2853.90Lower: 12.8% vs 13.7%

If complexed with metals or classified as phosphine derivative

Metal phosphonates or other phosphine compounds fall under Chapter 28 inorganic compounds

3808.93.15.00Higher: 41.5% vs 13.7%

If imported as formulated pesticide intermediate rather than pure chemical

Pesticide technical materials are classified in Chapter 38 regardless of chemical structure

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Import Tips & Compliance

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