1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid from United States
1-Amino-8-hydroxy-3,6-naphthalenedisulfonic acid is a separate chemically defined organic compound with amino, hydroxy, and sulfonic acid groups on a naphthalene ring. It is a diazo coupling component used in the synthesis of acid dyes, falling under tariff item 2922.21.00 as an aminohydroxynaphthalenesulphonic acid.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is a separate chemically defined compound; impurities are allowed but must not alter its identity
• Declare the correct 8-digit tariff item 2922.21.00 and provide a technical data sheet to support classification
• Check if the product requires a permit under the Chemicals Management Plan (CMP) before import