Triethylenetetramine (TETA)
Triethylenetetramine is a polyamine with multiple nitrogen functions including secondary and tertiary amines, classified under HTS 2929.90.50.95 as a compound with 'other nitrogen function' not specified elsewhere in heading 2929. It is used primarily as a curing agent for epoxy resins in industrial applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified primarily as ethylenediamine derivative
If the compound's principal function is as an acyclic polyamine of ethylenediamine type, it falls under 2921.30 rather than 'other nitrogen function'.
If when imported as formulated epoxy curing mixture
Prepared mixtures or solutions of amines for specific industrial use are classified in Chapter 38 as chemical preparations rather than pure compounds.
If for quaternary ammonium salts form
Quaternized derivatives with permanent positive charge on nitrogen are classified as heterocycles in heading 2933.
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Import Tips & Compliance
• Verify purity levels and provide chemical analysis certificates to confirm classification under Chapter 29 as a separate chemically defined organic compound
• Include Safety Data Sheets (SDS) and ensure proper hazardous material labeling for transport as it is corrosive
• Avoid misclassification as mixtures; single isomer products stay in 2929 while blends may shift to Chapter 38
Related Products under HTS 2929.90.50.95
N,N-Diethylhydroxylamine (DEHA)
N,N-Diethylhydroxylamine is an organic compound featuring a nitrogen atom bonded to a hydroxyl group and two ethyl groups, falling under 'other nitrogen function' in HTS 2929.90.50.95. It serves as a corrosion inhibitor and photographic developer.
Benzylamine
Benzylamine is an organic compound with a primary amine group attached to a benzene ring via methylene linkage, classified in HTS 2929.90.50.95 under 'other nitrogen function'. Essential intermediate for pharmaceuticals and dyes.
Girard's Reagent T
Girard's Reagent T (trimethylammoniumacetohydrazide chloride) contains hydrazone and quaternary ammonium nitrogen functions, classified under HTS 2929.90.50.95. Used in steroid analysis and carbonyl derivatization.
N-(2-Aminoethyl)piperazine
This compound features both primary amine and secondary amine functions within a piperazine ring structure, falling under HTS 2929.90.50.95 as 'other nitrogen function'. Used in epoxy curing and polyamide production.
Cyanamide (50% aqueous solution)
Cyanamide in 50% aqueous solution qualifies under Chapter 29 note (d) as a chemically defined compound dissolved in water, classified HTS 2929.90.50.95. Used in agriculture and chemical synthesis.
Nitromethane
Nitromethane (CH3NO2) features a nitro group (-NO2) attached to methane but classified under HTS 2929.90.50.95 per chapter note excluding nitro groups from heading 2929 definition for nitrogen-functions. Used in fuels and explosives.