2, 5 - diamino carbazole compound and use thereof

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PROBLEM TO BE SOLVED : To provide a compound superior to a conventional 2, 5-diamino carbazole compound in oxidation stability, and having moderate ionization potential and high triplet level.SOLUTION : There is provided a 2, 5-diamino carbazole compound represented by the general formula (1). In the formula (1), Arto Arare each independently a C6 to 20 aromatic hydrocarbon group or a C6 to 18 heteroaromatic group, Aris a C6 to 17 aromatic hydrocarbon group or a C3 to 20 heteroaromatic group, Rto Rare a C6 to 20 aromatic hydrocarbon group, a C3 to 20 heteroaromatic group, a C1 to 18 straight or branched or cyclic alkyl group or alkoxy group, a cyano group, a halogen atom, a deuterium atom, a hydrogen atom and the like.