NPP Stabilized with Antioxidant from China
N-Phenethyl-4-piperidone (NPP) stabilized with butylated hydroxytoluene (BHT) to prevent oxidation during storage and transport. This additive is permitted under Chapter 29 Note 1(f) as a stabilizer necessary for preservation. The product retains its identity as a separate chemically defined compound, classifiable under this tariff item.
Duty Rate — China → Canada
0%
Import Tips
• Confirm the stabilizer is present only in quantities necessary for preservation, and document this in the import paperwork
• Provide the stabilizer's concentration and function to CBSA if questioned
• Ensure the stabilizer does not impart specific-use characteristics to the product