Carboxymethylcellulose Sodium USP Grade from Mexico
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 — Mexico → United States
6.4%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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