2935.90.06.00/4-Amino-6-chloro-m-benzenedisulfonamide Technical Grade/Canada

4-Amino-6-chloro-m-benzenedisulfonamide Technical Grade from Canada

Technical grade 4-Amino-6-chloro-m-benzenedisulfonamide (95-98% purity) qualifies under HTS 2935.90.06.00 as the named sulfonamide compound per Chapter 29 scope for compounds 'whether or not containing impurities'. Used in synthesis of diuretics and bactericides.

Duty Rate — Canada → 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

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Import Tips

• Purity certificate (HPLC) showing >95% named compound essential; lower purity risks reclassification as 3824 mixture

• Declare as 'chemical intermediate' not 'active pharmaceutical ingredient' to avoid Chapter 30 scrutiny

• Hazardous material shipping papers required (UN number if applicable); DOT classification impacts transport costs