Anthraquinone Disulfonic Acid Sodium Salt from Mexico
A water-soluble sodium salt of anthraquinone disulfonic acid, classified under HTS 2914.79.30.00 as an aromatic sulfonated quinone derivative with oxygen function. It serves as a key intermediate in dye synthesis and pharmaceutical production due to its stable aromatic structure.
Duty Rate — Mexico → United States
10%
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
• Verify purity certificates to confirm chemical identity as per Chapter 29 notes; ensure SDS includes sulfonated derivative details for CBP review
• Avoid misclassification as coloring matter under Chapter 32 by emphasizing intermediate use