1-Naphthol-3,6-Disulfonic Acid (H Acid precursor salt) from United States
1-Naphthol-3,6-Disulfonic Acid (H Acid precursor salt) is a disulfonic acid salt of 1-naphthol, captured under tariff item 2907.15.00 as a naphthol salt. It is an intermediate for H-acid used in reactive dyes, and meets Chapter 29 note 1(a) as a separate chemically defined compound.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is a salt of a naphthol and not a finished dye, which would be excluded under Chapter 29 note 2(g)
• Provide a Certificate of Analysis to CBSA to confirm the chemical structure
• Verify if the product is subject to any textile industry regulations