p-Aminoazobenzenedisulfonic acid from Japan
p-Aminoazobenzenedisulfonic acid is a chemically defined diazo compound with an azo linkage and two sulfonic acid groups. It is used as a key intermediate in the synthesis of azo dyes.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the product is a separate chemically defined compound and not a mixture
• Provide a Certificate of Analysis to the CBSA to confirm the chemical structure
• Verify if the product is listed under the Canadian Domestic Substances List (DSL) for compliance