PENTYLENETETRAZOLE1,5-Pentamethylenetetrazole6,7,8,9-Tetrahydro-5H-tetrazolo[1,5-a]azepine6,7,8,9-Tetrahydro-5H-tetrazoloazepine1,2,3,3a-Tetrazacyclohepta-8a,2-cyclopentadieneCardiazoleKorazolePentavetPentazolAngiazolCardiazolLeptazolVentrazol7,8,9,10-Tetrazabicyclo[5.3.0]-8,10-decadieneCardiolYetrazol