7-oxabicyclo[2.2.1]hept-2-ene-5,6-dione;7-oxabicyclo[2.2.1]hept-2-ene-5,6-quinone;55058-68-9;7-oxabicyclo[2.2.1]hept-5-ene-2,3-dione;7-Oxabicyclo(2.2.1)hept-5-ene-2,3-dione
7-oxabicyclo[2.2.1]hept-2-ene-5,6-dione