Fluorenone-2-sulfonic Acid from China
Fluorenone-2-sulfonic acid combines cyclic aromatic ketone with sulfonic substitution, fitting sulfonated derivative criteria of HTS 2914.79.40.00. Used in dye intermediates.
Duty Rate — China → United States
13%
Rate breakdown
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• UV-Vis spectrum confirms ketone chromophore essential for classification
• Avoid retail dye packing per chapter exclusion note (g)
• pH stability data required for aqueous handling declarations