Idoxuridine Crystals from Mexico
Idoxuridine is a halogenated pyrimidine nucleoside antiviral with nitrogen-only heteroatoms in the ring structure. It qualifies for HTS 2933.59.95.00 as an 'other' pyrimidine compound under Chapter 29 for chemically defined heterocycles. Used in ophthalmic formulations but imported as pure API.
Duty Rate — Mexico → United States
6.5%
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 spectral analysis confirming pyrimidine ring; halogen derivatives stay in Chapter 29
• Comply with biohazard labeling if antiviral activity noted