Carboxymethylcellulose Sodium USP Grade from Canada
Pharmaceutical-grade sodium carboxymethylcellulose used in eye drops and tablet binders, supplied as a fine white powder. Classified under HTS 3912.31.00 for carboxymethylcellulose salts in primary forms, not further processed into articles.
Duty Rate — Canada → United States
16.4%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include FDA Drug Master File or USP certificate; test for viscosity and degree of substitution to match subheading specs; avoid bulk packaging over 25kg to prevent 'article' reclassification