Piperonal USP Reference Standard from Mexico
Official USP piperonal reference standard for assaying pharmaceutical intermediates. As a pure chemically defined heterocyclic compound, it is classified under tariff item 2932.93.00.
Duty Rate — Mexico → Canada
0%
Import Tips
• Ensure the product is piperonal and not a mixture
• Declare tariff item 2932.93.00 for the reference standard
• Keep a certificate of analysis to confirm the chemical identity for CBSA