54196-21-3 12a,14a-dimethyl-1-(6-methylheptan-2-yl)-1,2,3,3a,3b,11,12,12a,12b,13,14,14a-dodecahydroindeno[5,4-a]tetrazolo[1,5-c][3]benzazepin-10(8H)-one 19651-80-0 5,5,13,13-tetradehydro-4,5-dihydro-4,8,10,15-tetranitro-7,11-metheno-11H,13H-tetrazolo[1,5-c][1,7,3,5,2,6]dioxadiazadiplumbacyclododecine