Tetramethylguanidine (TMG) from Germany
Tetramethylguanidine (TMG) is a strong organic base with a guanidine structure and four methyl groups, classified as a chemically defined imine-function compound under tariff item 2925.29.00. It is used as a catalyst and reagent in organic synthesis, and is not excluded by Chapter 29 notes.
Duty Rate — Germany → Canada
0%
Import Tips
• Classify TMG under 2925.29.00 as an imine derivative and provide the CAS number (80-70-6) on the commercial invoice
• Verify that the product is not diluted with solvents beyond what is needed for safe transport, as per Chapter 29 note 1(e)
• Consult the CBSA tariff classification advice service if unsure about purity levels