65304-59-8;Tricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene,4,5,7,8-tetramethyl-;Tricyclo[8.2.2.24,7]hexadeca-4,6,10,12,13,15-hexaene,5,6,15,16-tetramethyl-;Tricyclo(8.2.2.24,7)hexadeca-4,6,10,12,13,15-hexaene, 5,6,15,16-tetramethyl-