azo quinone compd., electrophotographic photosensitive member, and image forming device

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PROBLEM TO BE SOLVED : To provide azoquinone compounds giving an electrophotographic photosensitive material excellent in photosensitivity when contained in a photosensitive layer of an electrophotographic photosensitive material.SOLUTION : Azoquinone compounds of formula (1) are provided. In the formula (1), Rto Rare identical or different and a hydrogen atom, a 1-12C alkyl group, a 6-12C aryl group, a 6-12C alkyl group substituted with a 1-12C alkyl group, etc., and Ris a hydrogen atom, a halogen atom, a 1-12C alkyl group, a 6-12C aryl group, etc.