Salicylidene-2-aminophenol from Germany
Salicylidene-2-aminophenol forms a bis-imine chelating ligand for metal complexes, classified under HTS 2925.29.90.00 as an imine derivative. Used in catalysis and coordination chemistry.
Duty Rate — Germany → United States
21.3%
Rate breakdown
9903.04.6211.3%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide chelation stability constants (log K) for metal complex formation
• Declare as 'ligand precursor' to distinguish from final metal complexes
• Include tautomerism study confirming keto-enol equilibrium