Dibutylamine from Mexico
Dibutylamine (C4H9)2NH is a secondary acyclic monoamine used in dye manufacturing and rubber chemicals. Classified under 2921.19.61 as chemically defined acyclic monoamine derivative per Chapter 29 note (a).
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
• GC purity certificate (>98%) essential; technical grades often exceed impurity limits
• Dark amber bottles required for light-sensitive amine; clear containers cause degradation
• Molecular weight confirmation (129.24) prevents n-butylamine mix-up at entry