Diethyl Chloromethylphosphonate

This phosphonate ester with chloromethyl substitution serves as a pharmaceutical intermediate and reagent in organic synthesis. HTS 2931.59.00 applies due to halogenated organo-phosphorus structure meeting chapter note requirements.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
๐Ÿ‡จ๐Ÿ‡ณChina3.7%+10.0%13.7%
๐Ÿ‡ฒ๐Ÿ‡ฝMexico3.7%+10.0%13.7%
๐Ÿ‡จ๐Ÿ‡ฆCanada3.7%+10.0%13.7%
๐Ÿ‡ฉ๐Ÿ‡ชGermany3.7%+10.0%13.7%
๐Ÿ‡ฏ๐Ÿ‡ตJapan3.7%+10.0%13.7%

Alternative Classifications

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

2931.90Same rate: 13.7%

If other organo-inorganic without halogen emphasis

De-emphasizing halogen function shifts to general organo-inorganic.

2919.90.50Higher: 28.7% vs 13.7%

If phosphate ester classification

Esters prioritized by oxygen function per chapter notes.

2933.99.22Lower: 6.5% vs 13.7%

If heterocyclic phosphorus compounds

Cyclic phosphorus structures classified in heterocyclics.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

โ€ข Document CAS registry number 1066-86-8 for customs verification

โ€ข Monitor DEA List I chemical status for narcotic precursor potential

โ€ข Use nitrogen-blanketed containers to prevent hydrolysis

Related Products under HTS 2931.59.00

Tris(2-chloroethyl) Phosphate (TCEP)

Tris(2-chloroethyl) phosphate is a halogenated organo-phosphorus compound used primarily as a flame retardant in plastics, textiles, and polyurethane foams. It falls under HTS 2931.59.00 as a halogenated organo-inorganic compound with phosphorus and chlorine directly linked to carbon atoms, not classifiable as sulfonated or halogenated derivatives of other headings.

Tris(1,3-dichloro-2-propyl) Phosphate (TDCPP)

TDCPP is a chlorinated tris phosphate ester used as a flame retardant in flexible polyurethane foams for furniture and automotive applications. Classified under HTS 2931.59.00 as a halogenated organo-phosphorus derivative with multiple chlorine atoms attached to carbon.

Tris(2-chloroisopropyl) Phosphate (TCPP)

TCPP is a low-volatility chlorinated phosphate ester serving as a reactive and additive flame retardant in rigid polyurethane foams and coatings. It qualifies for HTS 2931.59.00 due to its halogenated organo-phosphorus structure with chlorine-carbon bonds.

2-Chloro-1,3,2-dioxaphospholane 2-Oxide

This cyclic chlorophosphate compound serves as a reactive intermediate for synthesizing flame retardants and polymer additives. Falls under HTS 2931.59.00 as a halogenated organo-phosphorus derivative with phosphorus-chlorine and carbon-linked structures.

Chloromethylphosphonic Acid

Chloromethylphosphonic acid is a halogenated phosphonic acid used in agrochemical synthesis and metal surface treatment. Classified in HTS 2931.59.00 for its chloromethyl group directly attached to phosphorus with carbon linkage.

Bis(2-chloroethyl) Phosphonate

A difunctional chlorophosphonate used in flame retardant polymer synthesis and as a cross-linking agent. Falls under HTS 2931.59.00 as a halogenated organo-phosphorus compound per chapter definitions.