Benzene Sulfonic Acid Sodium Salt from Canada
Sodium benzenesulfonate (CAS 127-73-1) is the simplest sulfonated aromatic, derived from phenol structure, containing only sulfo groups. HTS 2908.99.1500 for this pure compound used in 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
• NMR spectrum confirming structure; hygroscopic - sealed packaging
• Avoid 'buffer salt' description triggering food additive scrutiny under Chapter 38