o-Aminobenzenesulfonic Acid (Orthanilic Acid) from Mexico
Orthanilic acid is a chemically defined aromatic monoamine derivative with both amino and sulfonic acid groups on a benzene ring, explicitly listed under HTS 2921.42.18.00. It serves as a key intermediate in dye synthesis and pharmaceutical production. This classification applies due to its specific structure as an aniline derivative and salt thereof.
Duty Rate — Mexico → United States
15.8%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide Certificate of Analysis (CoA) confirming chemical purity and identity to avoid misclassification
• Ensure SDS includes GHS labeling for hazardous transport; verify DOT/UN proper shipping name
• Declare exact CAS number (582-35-4) on entry to match HTS description precisely