1,2,6,7-tetramethylpyrazolo[1,2-a]pyrazole-3,5-dione
1,2,6,7-tetramethylpyrazolo[1,2-a]pyrazole-3,5-quinone
2,3,5,6-Tetramethyl-1H,7H-pyrazolo[1,2-a]pyrazole-1,7-dione
3,4,6,7-Tetramethyl-1,5-diazabicyclo[3.3.0]octa-3,6-diene-2,8-dione
38369_FLUKA
syn-(Methyl,methyl)bimane