m-Benzenedisulfonic Acid Sodium Salt from Canada
m-Benzenedisulfonic acid sodium salt is a sulfonated derivative of benzene with two sulfo groups and sodium counterions, explicitly listed under HTS 2904.10.10.00. It serves as an intermediate in dye manufacturing and chemical synthesis.
Duty Rate — Canada → United States
15.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide detailed chemical analysis certificates confirming purity and structure to avoid misclassification
• Ensure SDS and transport documents comply with hazardous material regulations for sulfonated compounds
• Verify CAS number (28984-07-0) matches import declaration to prevent customs delays