Saccharin Impurity A (o-Sulfamoylbenzoic Acid) from Germany
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 — Germany → United States
15%
Rate breakdown
9903.04.6211.3%Pharmaceuticals: patented pharma from JP/EU/KR/CH/LI — 15% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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