Propanedinitrile, 2-[[5-[4-(5-bromo-2-thienyl)-2,5-bis(2-butyloctyl)-2,3,5,6-tetrahydro-3,6-dioxopyrrolo[3,4-c]pyrrol-1-yl]-2-thienyl]methylene]- [ 2059936-87-5 ]