3912.31.00.90/Pharma-Grade Cross-Linked CMC/Mexico

Pharma-Grade Cross-Linked CMC from Mexico

Cross-linked sodium carboxymethylcellulose for controlled-release drug matrices. Still primary polymer under HTS 3912.31.00.90 as chemically modified CMC salt per subheading note (a)(3). Imported for advanced pharma applications.

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
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Import Tips

• Molecular weight and cross-link density docs justify 'Other' CMC classification

• GMP manufacturing certs speed FDA review

• Not for retail sale per 3921 size note limits

Pharma-Grade Cross-Linked CMC from Mexico — Import Duty Rate | HTS 3912.31.00.90