Metanilic Acid (3-Aminobenzenesulfonic Acid) from Japan
Though containing sulfonic acid, metanilic acid classifies here as an amino-phenol derivative not qualifying as sulfonated under exclusion notes, with primary oxygen amino-function. It's a key intermediate for azo dyes. Falls under 'other' amino-phenols per hierarchy.
Duty Rate — Japan → United States
21%
Rate breakdown
9903.04.628.5%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
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Confirm via NMR/CoA that sulfur is NOT directly carbon-linked as sulfonated derivative to avoid 2930 misclassification
• Ship with anticaking stabilizer only if necessary for transport (note f); excess additives trigger specific-use exclusion
• Declare CAS 121-47-1 precisely; customs often challenges sulfonic acids against organo-sulfur headings