C2H2N2O2 Index of chemical compounds with the same molecular formula From Wikipedia, the free encyclopedia The molecular formula C2H2N2O2 (molar mass: 86.05 g/mol, exact mass: 86.0116 u) may refer to: Furoxan, or 1,2,5-oxadiazole 2-oxide Sydnone This set index page lists chemical structure articles associated with the same molecular formula.If an internal link led you here, you may wish to change the link to point directly to the intended article. More information Related molecular formulas ... Related molecular formulas C2H4N2O2 CN2O2 C2H2N2O2 C3H4N2O2 C2N2O2 C2H2N2O C2H2N2O3 C2HNO2 C2H3N3O2 Close Related Articles