2,4-二羟基-5-硝基苯甲醛

2-(3,5-二羟基苯基)-6-羟基苯并呋喃

3-hydroxy-4-(2,3,6,7-tetrahydroxyxanthen-9-ylidene)cyclohexa-2,5-dien-1-one

(±)-驴食草酚

5-溴-2-羟基-4-甲氧基苯甲醛