Azobenzene-4-sulfonic Acid from Mexico
Water-soluble azo compound used in direct dyes and analytical chemistry. HTS 2927.00.50.00 despite sulfonation, as azo function occurs later in chapter order. Provided as sodium salt.
Duty Rate — Mexico → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Sulfonated but azo takes precedence per chapter notes; moisture-proof packaging; pH adjustment instructions needed