Isopropyl [O-2-(Methylpropylamino)ethyl] Hydrogen Isopropylphosphonite
Complex phosphonite with mixed isopropyl/methylpropyl amino substituents, classified in HTS 2931.49.00.08 for its non-halogenated organo-phosphorus aminoethyl structure. Applied in fine chemical synthesis and agrochemical intermediates.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sulfur atom directly linked to carbon dominates
Heading 2930 for organo-sulfur takes precedence if sulfur-carbon bond defines the compound per Chapter notes.
If primarily phosphoric acid ester
Phosphoric vs phosphonous acid derivatives separate at heading level based on oxygen function.
If pesticide-active formulation
Goods of Chapter 38 supersede Chapter 29 for pesticidal products put up for retail sale.
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Import Tips & Compliance
• Customs requires CAS number if assigned; generic phosphonites often lack them—use IUPAC name instead
• Test for phosphorous content to distinguish from sulfonated derivatives excluded from heading 2931
• For R&D imports, use temporary entries under 9813.00.05 to defer duties during testing
Related Products under HTS 2931.49.00.08
O-2-(Dimethylamino)ethyl Hydrogen Methylphosphonite
This is a specific non-halogenated organo-phosphorus compound featuring a phosphonite group linked to a dimethylaminoethyl chain, classified under HTS 2931.49.00.08 as it matches the exact chemical structure described for phosphonites with dialkylamino substituents. It serves as a key intermediate in synthesizing phosphorus-based ligands for catalysis.
Methyl [O-2-(Dipropylamino)ethyl] Methylphosphonite Ester
This O-alkyl ester of a dipropylaminoethyl hydrogen methylphosphonite falls squarely under HTS 2931.49.00.08 due to its defined dialkylamino and C≤10 alkyl structure. Primarily utilized in ligand synthesis for transition metal catalysts.
O-2-(Diethylamino)ethyl Hydrogen Ethylphosphonite
A phosphonite ester derivative with diethylaminoethyl and ethyl groups, precisely fitting HTS 2931.49.00.08 for non-halogenated amino-substituted phosphonites. Used in asymmetric catalysis and pharmaceutical intermediate production.
Diethylaminoethyl Cyclohexylphosphonite
O-cyclohexyl ester variant (C6 cycloalkyl ≤C10) of diethylaminoethyl hydrogen phosphonite, fitting HTS 2931.49.00.08 specifications for alkyl/cycloalkyl esters. Key reagent in Buchwald-Hartwig coupling catalyst preparation.