1,9-Thianthrenedicarboxylic acid from Mexico
1,9-Thianthrenedicarboxylic acid, a polycyclic aromatic heterocyclic compound with sulfur bridges. This chemically defined compound is used in specialty chemical synthesis and materials science.
Duty Rate — Mexico → Canada
0%
Import Tips
• This compound is a separate chemically defined heterocyclic compound per Chapter 29 Note 1
• Provide the structural formula and purity for customs
• Verify if the product has any restricted uses under Canadian regulations