Sulfanilic Acid from Japan
Sulfanilic acid (4-aminobenzenesulfonic acid) is a white crystalline powder classified under HTS 2921.42.22.00 as an aniline derivative and salt thereof, consisting of a chemically defined aromatic monoamine with a sulfonic acid group. It serves as a key intermediate in dye manufacturing and pharmaceutical synthesis.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Verify purity ≥98% via Certificate of Analysis to confirm classification as chemically defined compound under Chapter 29
• Include SDS and REACH compliance docs; sulfonic acids may trigger hazardous material shipping requirements
• Avoid misclassification as sulfonated dye intermediate (3204) by ensuring no coloring properties