Diphenyl Ureine Salt DPS-3 from Canada
DPS-3 is the sodium salt of an aromatic diphenyl ureine derivative, used as a stabilizer in polymer production. Falls under HTS 2924.21.4500 per note (C)(1) classifying salts with parent organic compound; pure, chemically defined per chapter note (a).
Duty Rate — Canada → United States
16.5%
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 organic base vs inorganic acid in salt formation per note (C)(2) for classification
• Anti-caking agents allowed only if necessary for transport per note (f); excess triggers reclass
• Industrial vs pharma end-use affects marking; misdeclaration common pitfall