2-Acetamido-5-ethoxy-1,4-benzoquinone 24260-08-0 4-14-00-00828 (Beilstein Handbook Reference) ACETAMIDE, N-(3,6-DIOXO-4-ETHOXY-1,4-CYCLOHEXADIEN-1-YL)- BRN 2938978 CCRIS 2011 N-(3,6-Dioxo-4-ethoxy-1,4-cyclohexadien-1-yl)acetamide