Fumaronitrile from Japan
Fumaronitrile (NCCH=CHCN) is a trans-1,2-dicyanoethylene used in Diels-Alder reactions and polymer modification. Classified HTS 2926.90.50 as other unsaturated nitrile-function compound; dual nitrile groups don't trigger separate subheading.
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
• Highly toxic—requires SCBA for spills; Store under inert atmosphere; Provide acute toxicity LD50 data for SDS