2-Amino-4-chloro-6-methoxy pyrimidine (99% purity) from Mexico
High-purity grade (99%) of 2-amino-4-chloro-6-methoxy pyrimidine, explicitly covered under HTS 2933.59.85.00. The specified purity does not alter classification as a chemically defined pyrimidine compound. Used in advanced pharmaceutical intermediate production.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.60100%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Include CoA (Certificate of Analysis) showing ≥99% purity to support chemical identity claims
• Declare as 'separate chemically defined compound' per Chapter 29 note (a) in entry summary
• Segregate from lower purity grades in shipments to prevent commingling classification issues