o-Toluenesulfonamide (OTS) from Canada
o-Toluenesulfonamide is a chemically defined organic sulfonamide compound with the formula C7H9NO2S, featuring a sulfonamide group (-SO2NH2) attached to an o-tolyl ring. It falls under HTS 2935.90.1500 as a specific sulfonamide classified within Chapter 29 for separate chemically defined organic compounds. Primarily used as an intermediate in organic synthesis and plasticizers.
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
Import Tips
• Verify purity certificate (typically >99%) and provide chemical safety data sheet (SDS) for DOT/REACH compliance during import
• Ensure proper labeling as a sulfonamide per TSCA inventory; avoid misclassification as a mixture which would shift to heading 3824