p-Aminoazobenzenedisulfonic acid from Japan
p-Aminoazobenzenedisulfonic acid is a chemically defined diazo compound featuring an azo (-N=N-) linkage and two sulfonic acid groups, explicitly listed under HTS 2927.00.06.00. It serves as a key intermediate in the synthesis of direct dyes for textiles and paper.
Duty Rate — Japan → United States
15.8%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide detailed chemical analysis (NMR, IR spectra) confirming azo structure and sulfonic acid purity to avoid reclassification as mixtures
• Include Safety Data Sheets (SDS) and ensure packaging complies with UN hazmat regulations for corrosive sulfonic acids
• Verify importer has proper TSCA registration as this compound requires EPA notification for U.S. manufacturing