Potassium 1-Naphthol-4-sulfonate from Canada
Potassium salt form of 1-Naphthol-4-sulfonic acid, soluble for use in textile dye manufacturing. Fits HTS 2908.99.06.00 as a salt of a sulfo-group derivative of phenol-alcohols, following Chapter 29 salt classification rules.
Duty Rate — Canada → United States
10%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit spectroscopic data confirming structure and salt form
• Check for anti-dusting agents that might trigger note (g) reclassification
• Use industrial packaging to avoid retail interpretations