Hexamethylenediamine Epoxy Adduct
Reaction product of hexamethylenediamine with epoxy resin, used as curing agent. Still classified under HTS 2921.22.5000 if retaining polyamine character. Viscosity 500-2000 cps.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-mixed curing agent system
Prepared paint/epoxy curing mixtures go to Chapter 38.
If significant epoxy resin content
Epoxy resin matrix dominates classification over amine curing agent.
If oxygen-function dominant
Principal oxygen functions take precedence in later headings.
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Import Tips & Compliance
• Submit epoxy equivalent weight and amine hydrogen equivalent weight specs
• Classify as UN 2735; require proper hazardous material training
• Distinguish from fully cured epoxy systems (Chapter 39)
Related Products under HTS 2921.22.50.00
Hexamethylenediamine Adipate Salt
Hexamethylenediamine adipate, also known as nylon 6,6 salt, is the salt formed from hexamethylenediamine and adipic acid. It falls under HTS 2921.22.5000 as a derivative salt of hexamethylenediamine, an acyclic polyamine. This compound is primarily used as an intermediate in nylon 6,6 polymer production.
Hexamethylenediamine Hydrochloride
The hydrochloride salt of hexamethylenediamine, a white crystalline powder used in organic synthesis. Classified under HTS 2921.22.5000 as a salt derivative of the acyclic polyamine hexamethylenediamine. Common stabilizer in epoxy curing agents.
Hexamethylenediamine Sulfate
Sulfate salt of hexamethylenediamine used as a corrosion inhibitor intermediate and in water treatment chemicals. HTS 2921.22.5000 covers this as 'other' salts of the polyamine. Typically supplied as 50-70% aqueous solution.
Di(hexamethylene)triamine Dihydrochloride
A derivative polyamine salt from hexamethylenediamine used in fuel additives and chelating agents. Falls under HTS 2921.22.5000 as 'other' acyclic polyamine derivatives and salts. Molecular weight approximately 266 g/mol.
Hexamethylenediamine Phosphate
Phosphate salt derivative used in flame retardant formulations and polymer modifiers. HTS 2921.22.5000 classification as hexamethylenediamine salt 'other'. Supplied as viscous liquid or powder.
N,N'-Diacetyl Hexamethylenediamine
Acetylated derivative of hexamethylenediamine used as pharmaceutical intermediate and polymer crosslinker. Classifies under HTS 2921.22.5000 as derivative of the base polyamine. Melting point 80-85°C.