1-Naphthol-3,6-Disulfonic Acid (H Acid precursor salt) from Mexico
A disulfonic acid salt of 1-naphthol, captured in HTS 2907.15.60.00 'other' category for naphthols and salts. Intermediate for H-acid used in reactive dyes.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Chemical assay reports must show naphthol as principal characteristic group
• Declare CAS 104-64-3 accurately to prevent isomer confusion
• Avoid adding identification agents beyond chapter note (g) limits