5-Amino-2-(p-aminoanilino) Benzenesulfonic Acid from Japan
This complex aromatic polyamine with sulfonic acid substitution is explicitly named in HTS 2921.59.0800 for use in azo dye coupling. It contains multiple amine functions connected via anilino linkage on a benzenesulfonic acid core. Fits Chapter 29 as a chemically defined aromatic polyamine derivative.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Exact CAS number matching required for specific HTS; generic description risks reclassification
• Water-soluble due to sulfonic group; test for impurities per Chapter 29 note (a)
• Comply with REACH Annex XVII restrictions if from EU; notify for carcinogenicity