8-Amino-2-naphthalenesulfonic acid (Chicago Acid) from United States
Chicago Acid (8-Amino-2-naphthalenesulfonic acid) is a key naphthalene-based amine-sulfonic acid used in azo dye manufacturing. It is classified under tariff item 2921.45.00 as a derivative of 2-naphthylamine with a sulfonic acid group.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is a single chemically defined compound; provide a certificate of analysis
• Check if the acid is subject to Canadian customs regulations for hazardous materials
• Keep records of the import for CBSA compliance