Tetrazolo

Butanedioic acid, (tetrazolo[1,5-b]pyridazin-6-ylhydrazono)-, diethylester

1,3,4-Oxadiazole-2(3H)-thione,5-(6,7-diphenyltetrazolo[1,5-b]pyridazin-8-yl)-3-(hydroxymethyl)-

1-Propanol, 3-[(5,6-dimethyl-8-nitrotetrazolo[1,5-a]pyridin-7-yl)amino]-

9-methoxy-3H-tetrazolo[1,5-d][1,4]benzodiazepin-6(5H)-one