13H-4,6:21,24-Dietheno-8,12-metheno-1H-pyrido[3′,2′:14,15][1,11]dioxacycloeicosino[2,3,4-ij]isoquinolinium, 2,3,13a,14,15,16,25,25a-octahydro-9,18,19,29-tetramethoxy-1,1,14,14-tetramethyl-, chloride (1:2), (13aR,25aS)-