Saccharin Impurity A (o-Sulfamoylbenzoic Acid) from Mexico
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 — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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