5-羟基靛红酸酐

2-[[(E)-3-(3,4-dihydroxyphenyl)prop-2-enoyl]amino]-5-hydroxybenzoic acid

6-羟基-2-(3-硝基苯基)喹唑啉-4(3h)-酮

5-hydroxy-2-[[(E)-3-(4-hydroxyphenyl)prop-2-enoyl]amino]benzoic acid

1-(2-氨基-5-甲氧基苯基)-乙酮