2-Naphthol-6,8-Disulfonic Acid Disodium Salt (Schaeffer Salt) from United States
2-Naphthol-6,8-Disulfonic Acid Disodium Salt (Schaeffer Salt) is a disulfonated naphthol derivative presented as a sodium salt. It falls under tariff item 2907.15.00 as an 'other' naphthol salt, used primarily as an intermediate in azo dye production for textiles and leather. The sulfonic acid groups do not alter the fundamental naphthol classification.
Duty Rate — United States → Canada
0%
Import Tips
• Classify as a naphthol salt under 2907.15.00; do not mistake it for a sulfonated derivative of heading 29.04
• Keep records of the manufacturing process to demonstrate it is not a finished dye
• Check if the product is subject to the Export and Import Permits Act for chemical precursors