Tobias Acid Sodium Salt (2-Naphthylamine-6-Sulfonic Acid precursor) from Mexico
Tobias Acid Sodium Salt, a sodium salt of a naphthol sulfonic acid used as a precursor in dye chemistry, is classified under tariff item 2907.15.00 as an 'other' naphthol salt. It is a key intermediate for the naphthol AS dye series, where the naphthol ring system is retained. The product's classification follows Chapter 29 Note 5(C)(1) for inorganic salts of organic compounds.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is not misclassified as an amine derivative; the naphthol structure governs the tariff item
• Maintain documentation showing the product is an intermediate, not a finished dye, to avoid reclassification under Chapter 32
• Verify if the product requires a permit under the Precursor Control Regulations