4-Methoxyphenyl Ureine MPU-22 from Mexico
MPU-22 is a methoxy-substituted aromatic ureine derivative for organic synthesis and research applications. Classifies as 'other' under HTS 2924.21.4500 for cyclic amide-function compounds per Chapter 29 scope.
Duty Rate — Mexico → United States
16.5%
Rate breakdown
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
• Small package research exempt from some docs but still needs commercial invoice
• Verify no enzyme activity excluding to 3507
• Lab vs commercial scale affects value declaration