5-Sulfosalicylic Acid from Germany
5-Sulfosalicylic acid is a sulfonated derivative of salicylic acid, specifically 5-hydroxy-2-sulfobenzoic acid. Despite the sulfonation, it is classified under tariff item 2918.29.00 as a carboxylic acid with phenol function. It is used for protein precipitation and iron testing.
Duty Rate — Germany → Canada
0%
Import Tips
• Ensure the product is a separate chemically defined compound
• Provide the sulfonation position and purity data
• Verify the product is not classified under organo-sulphur compounds (heading 2930) per Chapter 29 note 6