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2921.45.00/4-Amino-5-Hydroxy-2,7-Naphthalenedisulfonic Acid (H Acid)/Mexico

4-Amino-5-Hydroxy-2,7-Naphthalenedisulfonic Acid (H Acid) from Mexico

4-Amino-5-Hydroxy-2,7-Naphthalenedisulfonic Acid, commonly known as H Acid, is a key dye intermediate with an amino-naphthalene core structure. Despite having hydroxy and sulfonic acid groups, the amine function is the principal characteristic, placing it under tariff item 2921.45.00 as a naphthylamine derivative. It is widely used in reactive and direct dyes for cotton.

Duty Rate — Mexico → Canada

0%
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Import Tips

• Ensure the product is a separate chemically defined compound and not a mixture, as mixtures may be classified elsewhere

• Provide a detailed technical data sheet to CBSA to support the classification

• Verify if the product is subject to any export controls or environmental regulations in Canada

4-Amino-5-Hydroxy-2,7-Naphthalenedisulfonic Acid (H Acid) from Mexico — Import Duty Rate | Tariff item 2921.45.00