5-Amino-2-(p-aminoanilino) Benzenesulfonic Acid from Germany
5-Amino-2-(p-aminoanilino)benzenesulfonic acid is a complex aromatic polyamine with sulfonic acid substitution, used in azo dye coupling. It is classified under tariff item 2921.59.00 as an 'other' aromatic polyamine derivative.
Duty Rate — Germany → Canada
0%
Import Tips
• Provide the full chemical name and CAS number on import documents
• Ensure the product is a separate chemically defined compound
• Verify if the sulfonic acid group affects classification under other headings