5-Nitroisophthalic Acid from Canada
5-Nitroisophthalic acid is a nitrated derivative of isophthalic acid (1,3-benzenedicarboxylic acid, heading 2917), with nitro substitution on the aromatic ring. Falls under HTS 2913.00.40.00 for other nitrated aromatic acid derivatives. Used in polyester resin and dye production.
Duty Rate — Canada → United States
15.5%
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
• Specify dicarboxylic acid functionality in technical data sheet
• Test for isophthalic vs terephthalic isomer contamination
• Declare melting point range to confirm chemical identity