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Bis(hexamethylene)triamine

Bis(hexamethylene)triamine is a long-chain acyclic triamine used in high-performance polyamides. Classified as other acyclic polyamines under HTS 2921.29.00.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China6.5%+25.0%31.5%
🇲🇽Mexico6.5%—6.5%
🇨🇦Canada6.5%—6.5%
🇩🇪Germany6.5%—6.5%
🇯🇵Japan6.5%—6.5%

More Specific Codes

This product may fall under a more specific subheading:

2921.29.00.10Tetraethylene pentamine
→
2921.29.00.20Triethylenetetramine
→
2921.29.00.30Diethylenetriamine
→
2921.29.00.55Other
→

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2921.49Lower: 16.5% vs 31.5%

If toluidine derivatives

Aromatic analogs specifically provided earlier.

3908.10.00.00Lower: 31.3% vs 31.5%

If polyamide resin

Pre-polymerized forms in Chapter 39.

3824.99Lower: 15% vs 31.5%

If technical oligomer mixture

Mixtures of varying chain lengths as preparations.

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Import Tips & Compliance

• High melting point affects shipping; declare chain length precisely; specialty chemical status may qualify for duty relief

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.