5H-Tetrazolo(1,5-a)azepine, 6,7,8,9-tetrahydro-7-sec-butyl- 6,7,8,9-Tetrahydro-7-sec-butyl-5H-tetrazolo(1,5-a)azepine 8-sec-Butylpentamethylenetetrazole XF8231000