_:b7114423 . _:b7830355 . _:b8538805 . _:b13862811 . "1" . _:b12243860 . . _:b12048999 . _:b3730417 . _:b11743478 . . "6,7-dinitro-quinoxaline-2,3-dione"@en . _:b9025071 .