2-Diazo-1-Naphthol-4-Sulfonic Acid from Canada
A diazo coupling agent used in diazo-type copying papers and films, reacting to produce visible azo images upon light exposure. Classified under HTS 2927.00.25.00 due to its role in light-sensitive photographic reproduction processes.
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
• Include end-use statements from buyer specifying photographic paper manufacturing to justify tariff classification
• Ensure proper Hazard Class 6.1 labeling for toxic diazonium salts during ocean transport
• Test for stabilizer content; excess additives may reclassify as mixtures under heading 3824