2933.99.89.00/Hexamethyleneimine 99% Technical Grade/Canada

Hexamethyleneimine 99% Technical Grade from Canada

Technical grade hexamethyleneimine at 99% purity, a colorless liquid heterocyclic amine used in agrochemical and polymer synthesis. Classified under HTS 2933.99.89.00 as it matches the specific chemical definition for separate chemically defined organic heterocyclic nitrogen compounds. Impurities are minimal and do not alter its principal classification.

Duty Rate — Canada → United States

110%

Rate breakdown

9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter

9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter

Calculate with your customs value Verify with the Tariff Assistant

Import Tips

• Include GC-MS analysis certificate to confirm isomer purity; U.S

• Customs may test for compliance with Chapter 29 chemical definition

• Use UN-approved drums with nitrogen blanketing to prevent oxidation; common pitfall is inadequate stabilization leading to rejection

• Pre-register with EPA for TSCA inventory; provide end-use statement to avoid anti-dumping scrutiny on chemical intermediates