Propylenediamine
Propylenediamine (H2NCH2CH(NH2)CH3) is a branched acyclic diamine used in epoxy hardeners and fuel additives. Classified under HTS 2921.29.00 as other acyclic polyamines and their derivatives.
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More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If saturated acyclic hydrocarbon
If amine content insufficient for amine character, may classify by hydrocarbon chain.
If aromatic substituted analog
Aromatic versions specifically in heading 2921.49.
If fuel additive mixture
Blended for specific fuel use moves to Chapter 38 chemical mixtures.
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Import Tips & Compliance
• Differentiate 1,2 vs 1,3 isomers in documentation; flammability shipping regs apply; pitfall is hydrocarbon misclassification
Related Products under HTS 2921.29.00
Ethylenediamine
Ethylenediamine is an acyclic polyamine with the formula H2NCH2CH2NH2, consisting of two primary amine groups connected by an ethylene bridge. It falls under HTS 2921.29.00 as an acyclic polyamine and its derivatives; salts thereof, specifically as a basic 'other' acyclic polyamine not enumerated elsewhere in the subheading. Commonly used in chelating agents, epoxy curing, and pharmaceutical synthesis.
Diethylenetriamine (DETA)
Diethylenetriamine is a linear acyclic polyamine (H2NCH2CH2NHCH2CH2NH2) used primarily as an epoxy resin curing agent. Classified under HTS 2921.29.00 as an 'other' acyclic polyamine derivative essential for industrial applications like adhesives and coatings.
Triethylenetetramine (TETA)
Triethylenetetramine is an acyclic tetraamine (H2N(CH2CH2NH)3H) widely used in curing epoxy resins for composites and adhesives. It qualifies under HTS 2921.29.00 as an other acyclic polyamine and derivatives thereof.
Hexamethylenediamine
Hexamethylenediamine (H2N(CH2)6NH2) is a straight-chain acyclic diamine used in nylon-6,6 polymer production. Falls under HTS 2921.29.00 as an other acyclic polyamine essential for synthetic fiber manufacturing.
1,3-Diaminopropane
1,3-Diaminopropane (H2N(CH2)3NH2) is an acyclic diamine used in curing agents and cross-linking applications. Classified in HTS 2921.29.00 as other acyclic polyamines not specifically named.
Ethylenediamine Dihydrochloride Salt
Ethylenediamine dihydrochloride is the salt form of ethylenediamine (H3NCH2CH2NH3Cl2), used in pharmaceutical intermediates and metal finishing. HTS 2921.29.00 covers it per chapter note (C) classifying organic salts with the parent polyamine.