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PROBLEM TO BE SOLVED : To obtain a fullerene derivative having a new four-membered ring, and a method for producing the same.SOLUTION : The fullerene derivative of the present invention is represented by general formula (1). (In the formula, FLN is a fullerene skeleton; Rto Rare each independently a 1-20C organic group or a hydrogen atom; Ris an aromatic hydrocarbon group or a partially substituted aromatic hydrocarbon group; and n is an integer of 1-5.)