N-Salicylideneaniline from Mexico
N-Salicylideneaniline is a photochromic Schiff base imine with salicylaldehyde and aniline, classified under HTS 2925.29.90.00 as an imine derivative. Applications include molecular switches and sensors.
Duty Rate — Mexico → United States
110%
Rate breakdown
9903.04.6096.3%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
• Provide UV-Vis spectra demonstrating characteristic imine absorption at 300-400 nm
• Label as 'research chemical - not for medicinal use' to avoid pharmaceutical classification
• Include flash point and autoignition data for DOT hazardous materials shipping