Phenol-4-Sulfonic Acid from Mexico
Phenol-4-sulfonic acid, also known as 4-hydroxybenzenesulfonic acid, is a direct sulfonation product of phenol containing only sulfo groups. It is used as an intermediate in the production of dyes and pharmaceuticals. This chemically defined compound is classified under tariff item 2908.99.00 as a sulfonated derivative of phenols.
Duty Rate — Mexico → Canada
0%
Import Tips
• Provide the CAS number and purity certificate to confirm it is a chemically defined compound
• Ensure the product contains no additional functional groups beyond sulfo groups
• Keep documentation of the intended use as a dye or pharmaceutical intermediate