4-Hydroxy-1-naphthalenesulfonic acid, 98% purity from United States
4-Hydroxy-1-naphthalenesulfonic acid at 98% purity is a high-purity technical grade compound used as a pharmaceutical and dye intermediate. It is a separate chemically defined organic compound with only sulfo groups. It falls under tariff item 2908.99.00 as a sulphonated derivative of phenols or phenol-alcohols.
Duty Rate — United States → Canada
0%
Import Tips
• Provide the purity analysis and CAS number on the import documentation
• Confirm that the product is not put up in measured doses or for retail sale
• Verify the MFN duty rate and any applicable preferential tariff treatments under Canada's trade agreements