4-Sulfobenzophenone from China
4-Sulfobenzophenone features sulfonic acid group substitution, classifying as sulfonated aromatic ketone derivative per HTS 2914.79.40.00. Applied in water-soluble photoinitiators.
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
• Specify free acid vs. sodium salt form; salts follow chapter note 3(C)
• Hygroscopic; package with silica gel desiccants
• Water solubility testing documentation aids aqueous solution declarations