2,2',6,6'-Tetraisopropyldiphenylcarbodiimide (TIPC) from China
2,2',6,6'-Tetraisopropyldiphenylcarbodiimide (TIPC) is a sterically hindered aromatic carbodiimide used as a coupling agent in peptide synthesis and polymer chemistry. It is a chemically defined aromatic imide, falling under tariff item 2925.19.00 as 'other'.
Duty Rate — China → Canada
0%
Import Tips
• Ensure the product is not classified as a carbodiimide under another heading; verify the imide function is dominant
• Provide a certificate of analysis
• Check if the product is used in pharmaceutical applications requiring additional documentation