Tetramethylguanidine with Stabilizer from Canada
Stabilized tetramethylguanidine containing BHT preservative for transport, classified HTS 2925.29.70.00 per Chapter 29 note (f). Remains chemically defined imine compound. Used in fine chemical manufacturing.
Duty Rate — Canada → United States
10%
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
• Document stabilizer as necessary for preservation per note (f); excess may trigger note (g)
• Include formulation certificate showing <1% additives
• Avoid coloring/emetic additions unless for safety identification