3-Cyanopyridine (Nicotinonitrile) from Mexico
3-Cyanopyridine contains both pyridine ring and nitrile group, used in vitamin B3 synthesis and herbicides. HTS 2933.39.92.00 as pyridine takes precedence over nitrile function per Chapter 29 classification rules. Chemically defined per chapter notes.
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
• Nitrile hazard documentation; confirm >99% purity
• Synthetic route declaration may be requested