Diphenylamine 2,2'-Dicarboxylic Acid from Japan
Diphenylamine 2,2'-dicarboxylic acid is a diphenylamine derivative with carboxylic acid groups at the 2 and 2' positions, used in dye intermediates and pharmaceutical synthesis. It falls under tariff item 2921.44.00 as a derivative of diphenylamine, which covers substituted diphenylamine compounds.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the product is not more specifically classified as an amino acid derivative, as carboxylic acid functions may shift classification
• Provide a certificate of analysis to confirm the substitution pattern
• Check if the product is subject to Canadian pharmaceutical or chemical import controls