4-Amino-6-chloro-m-benzenedisulfonamide from United States
4-Amino-6-chloro-m-benzenedisulfonamide is a chemically defined organic compound containing sulfonamide groups, falling under tariff item 2935.90.00 as an 'Other' sulphonamide. It is primarily used as an intermediate in pharmaceutical synthesis, specifically for producing sulfonamide-based drugs. Its structure includes two sulfonamide functional groups, which are characteristic of this heading.
Duty Rate — United States → Canada
0%
Import Tips
• Ensure the product is classified as a separate chemically defined compound per Chapter 29 Note 1(a)
• Declare the correct 8-digit tariff item 2935.90.00 to avoid misclassification penalties
• Keep records of the chemical identity and purity for CBSA verification