indophenin

noun
in·​do·​phe·​nin | \ ˌindəˈfēnə̇n, ə̇nˈdäfənə̇n\

Definition of indophenin

: a blue crystalline compound C24H14N2O2S2 formed by reaction of thiophene with isatin and sulfuric acid and used as a color test for the presence of thiophene in technical benzene

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History and Etymology for indophenin

International Scientific Vocabulary ind- entry 2 + phene + -in; from a belief that it was a derivative of benzene; originally formed in German

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