2,2':3',2'':3'',2''':3''',2'''':3'''',2'''''-Sexiquinoxaline,5,5',5'',5''',5'''',5''''',6,6',6'',6''',6'''',6''''',7,7',7'',7''',7'''',7''''',8,8',8'',8''',8'''',8'''''-tetracosamethyl-3-(1-methylethyl)-