2-(4-Chlorphenyl)-5-methyl-2H-benzotriazol-1-oxid

4-hydroxy-3-imino-6-methyl-1-oxidoquinoxalin-1-ium-2-carbonitrile

3-amino-7-methyl-2-quinoxalinecarbonitrile 1,4-di-N-oxide

苯甲醛