4-Amino-6-chloro-m-benzenedisulfonamide Technical Grade from Germany
Technical grade 4-Amino-6-chloro-m-benzenedisulfonamide with 95-98% purity qualifies under tariff item 2935.90.00 as a chemically defined organic compound 'whether or not containing impurities' per Chapter 29 Note 1(a). It is used as an intermediate in pharmaceutical synthesis, and the impurities are incidental to the manufacturing process. The product retains its identity as a sulphonamide compound.
Duty Rate — Germany → Canada
0%
Import Tips
• Verify that the purity level (95-98%) does not alter the chemical identity, as impurities are allowed under Chapter 29
• Provide a certificate of analysis to CBSA to confirm the compound's composition
• Classify under 2935.90.00 as the residual item for sulphonamides