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1,6-Diaminohexane Dihydrochloride

The dihydrochloride salt of 1,6-diaminohexane provides stability for nylon intermediate applications. Per chapter note (C), organic salts classify with the parent acyclic polyamine 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.

2925.29Lower: 13.7% vs 31.5%

If different acid salt

Salts with organic acids may follow ester/salt rules to later headings.

2835.29Lower: 14.1% vs 31.5%

If phosphonate complexes

Complex salts with phosphorus follow inorganic classification rules.

5402.31Lower: 18% vs 31.5%

If nylon textile yarn

Polymerized end products in Chapter 54.

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Import Tips & Compliance

• Salt content must match declared stoichiometry; corrosion inhibitor packaging needed; pharma intermediates require additional filings

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.