ethyl 3-[4-(3-ethoxy-3-oxoprop-1-ynyl)phenyl]prop-2-ynoate

terephthalic acid bis(2,2-dimethylhydrazide)

1-N,4-N-dihydroxy-1-N,4-N-diphenylbenzene-1,4-dicarboxamide

bis[2-(2-formylphenoxy)ethyl] benzene-1,4-dicarboxylate

[4-[4-[4-(3-bromobenzoyl)oxybenzoyl]benzoyl]phenyl] 3-bromobenzoate