1-[(2-hydroxyphenyl)hydrazinylidene]naphthalen-2-one

3-oxo-2-[2-(6-oxocyclohexa-2,4-dien-1-ylidene)hydrazinyl]-N-phenylbutanamide

1,6-dihydroxyxanthen-9-one

6-bromobenzo[a]phenoxazin-5-one

2-phenoxy-3H-1,3,2λ⁵-benzoxazaphosphole 2-oxide