Disilene, 1,2-di-1-naphthalenyl-1,2-bis(1,1,3,3,5,5,7,7-octaethyl-1,2,3,5,6,7-hexahydro-s-indacen-4-yl)-, (1E)- 10mg

Disilene, 1,2-di-1-naphthalenyl-1,2-bis(1,1,3,3,5,5,7,7-octaethyl-1,2,3,5,6,7-hexahydro-s-indacen-4-yl)-, (1E)- 10mg