3,3'-Iminobis(N,N-dimethylpropylamine) (IBDMA) from Japan
IBDMA is a complex acyclic polyamine used in fuel additives and epoxy hardeners, classified under 2921.19.61.95 as it meets criteria for chemically defined acyclic amine derivatives 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
• Include GC-MS analysis showing single peak >98% purity to qualify as 'separate chemically defined compound'
• Certify stabilizer content <1% to avoid anti-caking agent provisions that could shift classification
• Declare flash point (typically 82°C) on commercial invoice for proper hazmat fee calculation