4,4'-Methylenebis(N,N-dimethylaniline) Iminium Salt from Mexico
This aromatic iminium salt serves as an intermediate in dye manufacturing and photographic chemicals. It qualifies for HTS 2925.29.60.00 as an aromatic imine derivative salt, explicitly covered by heading 2925 and Chapter 29 salt classification rules.
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
• Submit salt formation analysis showing organic base with iminium cation per Chapter 29 note 3(C)
• Include wastewater treatment plans if manufacturing site requires EPA pretreatment certification
• Avoid anti-dusting agents exceeding Chapter 29 note (g) limits to prevent reclassification