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Amine-function compounds > Acyclic polyamines and their derivatives; salts thereof: > Other > Other
Duty Rate (from China)
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2921.29.00.55
Ethylenediamine Dihydrochloride
Ethylenediamine dihydrochloride is the salt of ethylenediamine, an acyclic polyamine with two amino groups, classified under HTS 2921.29.00.55 as a derivative salt of acyclic polyamines. It is commonly used as a curing agent in epoxy resins and as an intermediate in pharmaceutical synthesis.
Diethylenetriamine (DETA)
Diethylenetriamine is an acyclic polyamine with three amino groups, falling under HTS 2921.29.00.55 as an 'other' acyclic polyamine. It serves as a key epoxy curing agent and chelating agent in industrial applications.
Hexamethylenediamine
Hexamethylenediamine, an acyclic diamine used primarily in nylon-6,6 production, is classified under HTS 2921.29.00.55 as an other acyclic polyamine. It meets Chapter 29 requirements for chemically defined organic compounds.
N,N-Dimethylethylenediamine
This tertiary amine derivative of ethylenediamine is an acyclic polyamine classified under HTS 2921.29.00.55. Used as a catalyst in polyurethane production and pharmaceutical intermediate.
1,3-Diaminopropane
1,3-Diaminopropane is a straight-chain acyclic polyamine with two primary amino groups, classified under HTS 2921.29.00.55. Applications include epoxy hardeners and chelating agents.
Triethylenetetramine (TETA)
Triethylenetetramine, a linear tetraamine, falls under HTS 2921.29.00.55 as an acyclic polyamine derivative. Widely used as high-performance epoxy curing agent.
Propylenediamine
Propylenediamine (1,2-diaminopropane) is an acyclic polyamine classified under HTS 2921.29.00.55, used in fuel additives and polymer synthesis.
Ethanolamine Mixtures (Di/Tri)
Mixtures of diethanolamine and triethanolamine classified as acyclic polyamine derivatives under HTS 2921.29.00.55 per Chapter note (b) on isomer mixtures.
Cadaverine Hydrochloride
Cadaverine hydrochloride, salt of 1,5-diaminopentane, is an acyclic polyamine derivative under HTS 2921.29.00.55 per Chapter salt classification rules.
Spermine Tetrahydrochloride
Spermine tetrahydrochloride, a tetraamine salt, classified under HTS 2921.29.00.55 as acyclic polyamine derivative salt for biochemical research.