The present invention relates to a fullerene derivative having a partial structure represented by the general formula (I): ##STR00001## wherein C.sup.1 to C.sup.8 are carbon atoms constituting a fullerene skeleton in which C.sup.6 to C.sup.8 are independently bonded to an organic group having 1 to 50 carbon atoms, and C.sup.1 is bonded to a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.