Hexamethyleneimine Hydrochloride Salt from Mexico
The hydrochloride salt form of hexamethyleneimine, a solid crystalline material for easier handling in synthesis. Classified under HTS 2933.99.89.00 following Chapter 29 note on inorganic salts of organic compounds staying with the parent organic heading. Used in medicinal chemistry research.
Duty Rate — Mexico → 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
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• ,Package in HDPE bottles with desiccants; moisture absorption common pitfall leading to clumping and quality disputes
• TSCA certification mandatory; include CAS 287-27-4 for base compound and salt registry number