5-Sulfosalicylic Acid from Japan
5-Sulfosalicylic acid (5-hydroxy-2-sulfobenzoic acid) is a carboxylic acid with a phenol function and a sulfonic acid group. Despite the sulfonation, it is classified under tariff item 2918.29.00 as an 'other' product because the sulfonic group does not change its primary function as a phenolic carboxylic acid. It is used in analytical chemistry for protein precipitation and iron testing.
Duty Rate — Japan → Canada
0%
Import Tips
• Ensure the product is a separate chemically defined compound
• Note that sulfonated derivatives are not excluded from this subheading unless they fall under a more specific heading
• Provide a safety data sheet as the product may be hazardous