Methyl Diethanolamine Phosphite

Methyl diethanolamine phosphite functions as a reactive flame retardant in rigid polyurethane foams. Amino-alcohol phosphite ester under HTS 2920.29.00.00.

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.

2922.19Lower: 16.5% vs 38.7%

If amine function predominates

Oxygen-function amino compounds classified under heading 2922.

3808.94.10.00Lower: 31.5% vs 38.7%

If flame retardant preparation

Goods specified in heading 3808 take precedence.

2933.39.61Lower: 6.5% vs 38.7%

If quaternary phosphonium salt

Heterocyclic nitrogen compounds with phosphorus under 2933.

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Import Tips & Compliance

Amine value titration confirms tertiary amine phosphite structure

Refractive index (1.47-1.49) specification prevents phosphate confusion

Isocyanate reactivity data supports reactive FR classification