diethyl 2,5-dihydroxyhexa-2,4-dienedioate

靛蓝

6-溴喹啉-2-羧酸乙酯

ethyl 2-[(3,5-dichlorophenyl)hydrazinylidene]propanoate

4-(4-methoxyanilino)-1-(4-methoxyphenyl)-2-phenyl-2H-pyrrol-5-one