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1-methyl-3-(3-methylsulfanylquinolin-4-yl)sulfanylquinolin-4-one

4-chloro-3-methylsulfanylquinoline

3-methylsulfanyl-4-(4-methylsulfanylquinolin-3-yl)sulfanylquinoline

X-ray structure of 3',4-dimethylthio-3,4'-diquinolinyl sulfide