Phenol-4-Sulfonic Acid from Japan
4-Hydroxybenzenesulfonic acid is the direct sulfonated phenol containing only sulfo groups, used in dye and pharmaceutical intermediates. Precisely fits HTS 2908.99.1500 definition.
Duty Rate — Japan → United States
12.5%
Rate breakdown
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
• pH <1 in 1% solution certification; light protection required
• Avoid 'sulfanilic acid' misnomer causing aniline derivative confusion under heading 2921