Benzylideneacetone Tosylhydrazone from China
Benzylideneacetone tosylhydrazone is a condensation product of an aromatic aldehyde, ketone, and tosylhydrazine, retaining hydrazine derivative character. It qualifies under HTS 2928.00.25.00 as aromatic per Chapter 29 for chemically defined hydrazine derivatives. Used in organic synthesis like Shapiro reaction.
Duty Rate — China → United States
31.5%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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
• Supply NMR/structural analysis to prove single compound status
• Handle as research chemical with DEA watch if precursors
• Avoid bulk mixtures that would classify under 3824