N-(2-Nitrophenyl)guanidine from Mexico
N-(2-Nitrophenyl)guanidine features guanidine nitrogen with ortho-nitroaromatic, fitting HTS 2929.90.20.00 other category. Applied in pharmaceutical research and polymer modifiers.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6093.5%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
• Guanidine base strength documentation; potential for salt formation noted; basic pH handling instructions