4-苯胺基-1,2-萘二酮

2-sulfanylidene-1H-benzo[e][1,3]benzoxazole-5-sulfonic acid

双肼酞嗪

4-氨基-3-羟基-7-硝基萘-1-磺酸

2-phenylbenzo[e][1,3]benzoxazole-5-sulfonyl chloride