Pharmaceutical Grade Metanilic Acid from Mexico
High-purity metanilic acid (>99.5%) for synthesis of sulfonamide antibiotics and pharmaceutical intermediates, classified as a chemically defined aromatic monoamine derivative under HTS 2921.42.21.00. Meets USP/EP standards for drug manufacturing.
Duty Rate — Mexico → United States
16.5%
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
• Include DMF or CEP references; coordinate with FDA prior notice for pharmaceutical intermediates
• Validate GMP-compliant packaging; sterile liners required to prevent contamination during customs inspection
• Document impurity profiles per ICH Q3A guidelines to confirm chemical definition status