色酮

3-(2-hydroxyphenyl)-1,3-(bis-diphenylphosphorohydrazono)propane

chlorhydrate de 3-(N,N-diethylaminomethyl)chromone

2-diphenylphosphorohydrazino-4-diphenylphosphorohydrazono-2,3-dihydro-4H-1-benzo-pyran

1-(2-hydroxyphenyl)-3-dimethylaminoprop-2-enone