Diethylenetriamine Pentaacetic Acid (DTPA) Ammonium Salt from China
Diethylenetriamine pentaacetic acid (DTPA) ammonium salt is a chelating agent with a polyamine backbone. While it contains carboxylic acid functions, the polyamine structure is the primary characteristic, and as a salt of an organic base, it is classified with the parent polyamine under this tariff item.
Duty Rate — China → Canada
0%
Import Tips
• Confirm the exact salt form and degree of substitution on the certificate of analysis
• Ensure the product is classified based on its polyamine backbone
• Verify if the product requires any food or drug regulations if used in pharmaceuticals