Metanilic Acid from China
Metanilic acid is a chemically defined aromatic monoamine derivative, specifically 3-aminobenzenesulfonic acid, classified under HTS 2921.42.21.00 as an aniline derivative salt. It serves as a key intermediate in the synthesis of azo dyes, pharmaceuticals, and sulfonamide drugs due to its sulfonic acid and amino functional groups.
Duty Rate — China → United States
44%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Provide Certificate of Analysis (CoA) confirming purity >98% and chemical identity to avoid misclassification as mixtures
• Ensure SDS includes GHS hazard labeling for corrosive sulfonic acid properties; comply with TSCA registration for US entry
• Verify packaging prevents moisture absorption, as hygroscopic nature can affect duty assessment if contaminated