High Purity Trimethylolpropane (TMP) 99.5% from Canada
High purity TMP (2-Ethyl-2-(hydroxymethyl)propane-1,3-diol) at 99.5% is used in radiation-curable coatings and adhesives. Classified under HTS 2905.41.00.00 as a pure acyclic polyhydric alcohol per chapter notes. Supplied as white crystalline flakes or molten.
Duty Rate — Canada → United States
13.7%
Rate breakdown
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
Import Tips
• Provide HPLC or GC assay reports proving >99% purity to avoid reclassification as impure compound
• Label drums with full IUPAC name and CAS 77-99-6
• Check flash point documentation for hazmat declarations