3,4-Dihydroxycinnamic Acid from United States
3,4-Dihydroxycinnamic acid, also known as caffeic acid, is a hydroxycinnamic acid with a phenolic carboxylic acid structure. It is a separate chemically defined organic compound and falls under this tariff item as a carboxylic acid with phenol function without other oxygen functions.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is identified as caffeic acid (3,4-dihydroxycinnamic acid) on shipping documents
• If the product is for pharmaceutical use, provide relevant purity certificates
• Consider whether the product could be classified under a more specific tariff item if it is a derivative