1-(2-Hydroxyphenyl)-1,3-butanedione from Canada
This compound is a 1,3-diketone with an ortho-hydroxyphenyl substituent, providing ketone and phenolic oxygen functions aromatically. Classified in HTS 2918.30.3000 as 'other' with ketone and additional oxygen. Common in chelating agents.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Use HPLC purity reports; diketone tautomerism requires keto-form confirmation
• For emetic-added safety versions, justify per note (g)