Dibutylamine from Japan
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 — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, 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