label: (E)-2-(2-hydroxy-4-oxopent-2-en-3-yl)-6,8-dinitro-2,4-dihydro-1H-benzo(b)(1,2,4)triazolo(4,3-d)(1,4)oxazin-1-one
label_lc: (e)-2-(2-hydroxy-4-oxopent-2-en-3-yl)-6,8-dinitro-2,4-dihydro-1h-benzo(b)(1,2,4)triazolo(4,3-d)(1,4)oxazin-1-one