Tetramethylguanidine with Stabilizer from Japan
Tetramethylguanidine stabilized with BHT (butylated hydroxytoluene) as a preservative for transport, remaining a chemically defined imine compound under tariff item 2925.29.00. The stabilizer is permitted by Chapter 29 note 1(f) as necessary for preservation, and the product is used in fine chemical manufacturing.
Duty Rate — Japan → Canada
0%
Import Tips
• Document the stabilizer (BHT) and its concentration to show it is solely for preservation and does not alter the product's general use, per Chapter 29 note 1(f)
• Provide the safety data sheet to CBSA to confirm the stabilizer is not rendering the product suitable for a specific use
• Ensure the stabilizer level is within normal industry limits to avoid reclassification as a preparation