Ethyl Cyanoacetate from Japan
Ethyl cyanoacetate (NCCH2CO2Et) is a versatile nitrile ester used in Knoevenagel condensations and pharmaceutical synthesis. It classifies under HTS 2926.90.50 because the nitrile function defines its chemical identity over ester per Chapter Note 1(A) cross-subchapter rules.
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
• Confirm ester:nitrile ratio via NMR for proper declaration; Use glass-lined containers to prevent base-catalyzed hydrolysis; Include TSCA inventory status in commercial invoice