Girard's Reagent T from United States
p-Toluenesulfonylhydrazide (TSH) is an aromatic sulfonyl hydrazide with a tosyl group attached to hydrazine. It is chemically defined and used as a reagent in organic synthesis. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine, with the sulfonyl group not affecting classification per Chapter 29 Note 6.
Duty Rate — United States → Canada
0%
Import Tips
• Confirm the product is not classified as an organo-sulfur compound under heading 2930—it is a hydrazine derivative
• Have the chemical structure and purity certificate
• Ensure no added substances that could reclassify it