Martius Yellow Base (1-(2,4-Dinitrophenylazo)-2-Naphthol) from Mexico
While technically an azo compound, pure Martius Yellow base retains naphthol classification under HTS 2907.15.60.00 when imported as chemical intermediate. Used in biological staining and pigment production.
Duty Rate — Mexico → United States
15.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Spectral analysis to prove naphthol structure dominates over azo function for Chapter 29
• Industrial end-use declaration prevents retail dye repacking issues (3212)
• Monitor for re-export as finished pigment triggering different duty