</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Hexamethylenediamine Adipate Salt from Mexico

Hexamethylenediamine adipate salt is a 1:1 salt formed from hexamethylenediamine and adipic acid, classified under HTS 2921.22.1000 because it is derived in whole or in part from adipic acid. This compound serves as a key intermediate in nylon 6,6 polymer production.

Duty Rate — Mexico → United States

16.5%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Provide detailed chemical analysis certificates confirming adipic acid derivation to avoid reclassification

Ensure proper UN-approved packaging for corrosive amine salts to comply with DOT and IMDG regulations

Declare exact purity levels (typically >98%) as impurities may affect duty treatment under chapter notes