Saccharin Impurity A (o-Sulfamoylbenzoic Acid) from Japan
o-Sulfamoylbenzoic acid, known as Saccharin Impurity A, is a key intermediate in saccharin synthesis and a chemically defined organic compound under HTS 2942.00.50.00. It features both sulfonic acid and carboxylic acid functionalities on a benzene ring.
Duty Rate — Japan → United States
23.8%
Rate breakdown
9903.04.6211.3%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
• Provide HPLC purity certificates (>98%) and impurity profiles required for pharmaceutical-grade intermediates
• Declare CAS number (6283-61-2) and IUPAC name on commercial invoice for accurate classification
• Ensure proper hazard communication labeling (corrosive) per GHS standards