4-Amino-6-chloro-m-benzenedisulfonamide from Mexico

This is a specific sulfonamide compound classified under HTS 2935.90.06.00 as a chemically defined organic compound containing sulfonamide groups. It is primarily used as an intermediate in pharmaceutical synthesis for carbonic anhydrase inhibitors and in agricultural chemical production. The product falls under Chapter 29 heading 2935 for sulfonamides other than those of subheading 2935.10.

Duty Rate — Mexico → United States

6.5%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter

Import Tips

Provide detailed chemical analysis (NMR, HPLC) certificates confirming identity as 4-Amino-6-chloro-m-benzenedisulfonamide to match exact HTS specification

Include Safety Data Sheets (SDS) and confirm <99% purity to avoid pharmaceutical finished product classification under Chapter 30

Declare intended use as chemical intermediate; mixtures exceeding Chapter 29 notes may shift to heading 3824