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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing heterocyclic oxygen ring structures
Chapter notes exclude epoxides/cyclic structures from 2931-2934 if ring heteroatoms dominate classification.
If for the quaternary alkylated salt form with extended chains
If heavily alkylated beyond protonated salts, it may classify as other esters of nitrogen-function compounds.
If metal coordination complex formed
Chapter note 3(C)(3) directs coordination compounds to latest numerical heading among fragments.
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
• Label containers with UN number for phosphorous esters; mislabeling leads to customs holds
• Provide structural formula verification via NMR/GC-MS data to confirm classification over broader 2931.49.00
• Avoid retail packaging as this triggers exclusion under Chapter notes for consumer preparations
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.
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.
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.