5-Amino-2-(p-aminoanilino) Benzenesulfonic Acid from Canada
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 — Canada → United States
15.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
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