7-hydroxy-4,6-dimethylchromen-2-one

2,4-bis(methoxymethoxy)benzaldehyde

2-bis(4-chlorophenyl)phosphoryl-N'-[(E)-(2-hydroxy-4-oxocyclohexa-2,5-dien-1-ylidene)methyl]acetohydrazide

(4E)-3-hydroxy-4-[[2-[(E)-1-(4-methylanilino)-1-nitrosoprop-1-en-2-yl]hydrazinyl]methylidene]cyclohexa-2,5-dien-1-one

6-[(hydroxyamino)methylidene]-3-methoxycyclohexa-2,4-dien-1-one