m-Benzenedisulfonic Acid Sodium Salt from United States
m-Benzenedisulfonic acid sodium salt is a sulfonated derivative of benzene with two sulfo groups and sodium counterions, classified under tariff item 2904.10.00. It serves as an intermediate in dye manufacturing and chemical synthesis. The sodium salt form is covered under Chapter 29 Note 5(C) as an inorganic salt of an organic compound.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the salt form is correctly classified with the organic compound under Chapter 29 Note 5(C)
• Provide documentation of the chemical structure and purity for CBSA
• Check for any restrictions on sodium salts in Canadian chemical imports