N-(2-iminochromen-3-carbonyl)-N'-(4-chlorobenzylidene)carbohydrazide

ethyl 3-(2-(4-chlorobenzylidene)hydrazinyl)-3-oxopropanoate

水杨醛

2-oxo-2H-chromene-3-carboxylic acid hydrazide

4-氯苯甲醛