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
100%
Rate breakdown
9903.04.6093.5%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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