Sodium Carboxymethylcellulose (CMC) Powder from Canada
Sodium carboxymethylcellulose is a water-soluble cellulose ether derived from cellulose, used as a thickener and stabilizer in food and pharmaceuticals. It falls under HTS 3912.31.00 as it is explicitly carboxymethylcellulose and its salts in primary form, meeting the 95% monomer content requirement for classification.
Duty Rate — Canada → United States
16.4%
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
• Verify purity and salt form via certificate of analysis to confirm 95%+ CMC content; ensure food-grade certifications like Kosher or Halal if applicable; declare exact CAS number (9004-32-4) to avoid misclassification as modified polymer