Cyclic Phosphinate Pesticide Precursor

This organo-phosphorus compound, specifically (5-Ethyl-2-methyl-2-oxido-1,3,2-dioxaphosphinan-5-yl) methyl methyl methylphosphonate, serves as a precursor for synthesizing cyclic phosphinate-based pesticides. It qualifies for HTS 2931.47.00.00 as a non-halogenated derivative with phosphorus directly bonded to carbon in its dioxaphosphinane ring.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+35.0%38.7%
🇲🇽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 38.7%

If used as organo-mercury compound or similar metal derivative

Other specific organo-inorganic compounds with metals classified separately within 2931.90.

3808.93Lower: 15% vs 38.7%

If final pesticide product rather than chemical intermediate

Herbicides containing phosphorus classified in 3808 based on pesticidal use rather than chemical structure.

2904Lower: 13.7% vs 38.7%

If for sulfonated or nitrated derivatives if modified

Halogenated/sulfonated phosphorus compounds shift to earlier headings per Chapter note on derivative priority.

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Import Tips & Compliance

Submit EPA registration documents if intended for pesticide synthesis to facilitate agricultural end-use verification

Ensure transport in Chapter 29-compliant solvent solutions (note e) without functional additives for specific applications

Document molecular structure via NMR/IR spectra to distinguish from halogenated derivatives in 2931 earlier subheadings