benzo[a]naphtho[2,1-c]phenazine

5,12-dihydrobenzo[b]phenazine

N-(2-氨基苯基)-N-苯基硫脲

1-phenyl-3-[2-(phenylcarbamothioylamino)phenyl]thiourea

2-[5-(1H-benzimidazol-2-yl)-1,2-dihydropyrazol-3-ylidene]benzimidazole