Hexamethylenetetramine
Heterocyclic compounds with nitrogen hetero-atom(s) only: > Compounds containing an unfused triazine ring (whether or not hydrogenated) in the structure: > Other: > Hexamethylenetetramine
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2933.69.50.00
Hexamethylenetetramine Powder
Pure hexamethylenetetramine (urotropin) in powdered form, a heterocyclic compound with an unfused triazine ring structure, classified under HTS 2933.69.5000 as it matches the chemical definition in the heading. Used primarily as a chemical intermediate and reagent.
Urotropin Industrial Grade
Industrial-grade hexamethylenetetramine, chemically C6H12N4, used in phenolic resin production and as a catalyst. Falls under 2933.69.5000 due to its specific triazine ring structure as a separate chemically defined compound.
Hexamine Pharmaceutical Grade
High-purity hexamethylenetetramine (hexamine) meeting USP standards for urinary antiseptic formulations. Classified in 2933.69.5000 as a nitrogen-heterocyclic compound with triazine structure, not as a finished immunological product.
Hexamethylenetetramine Flake Form
Hexamethylenetetramine produced in translucent flake form for easier handling in resin manufacturing. Remains under HTS 2933.69.5000 as physical form doesn't change its chemical classification as a triazine compound.
Stabilized Hexamine for Explosives
Hexamethylenetetramine with 0.1% acid stabilizer for safe transport in RDX/hexogen production. Classified 2933.69.5000 per Chapter 29 note (f) allowing stabilizers necessary for preservation.
Technical Grade Urotropin 99%
99% pure technical grade urotropin for rubber vulcanization accelerator systems. HTS 2933.69.5000 classification due to specific chemical identity as hexamethylenetetramine with triazine ring.
Hexamethylenetetramine with Anti-Caking Agent
Hexamine powder treated with 0.15% silica anti-caking agent for free-flowing properties. Allowed under HTS 2933.69.5000 per Chapter 29 note (f) as stabilizer necessary for transport.