A class of organic compounds containing a five-membered ring consisting of three carbon atoms, one nitrogen atom, and one sulfur atom.
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1,3,4-Thiadiazol-2(3H)-one, 5-[2-(hexyloxy)phenyl]-, hydrazone, monohydrochloride
6-[(2-phenylhydrazinyl)methylidene]cyclohexa-2,4-dien-1-one