(5E)-5-(1,2-dihydrotetrazol-5-ylidene)quinolin-8-one(5Z)-5-(1,2-dihydrotetrazol-5-ylidene)quinolin-8-one
(5e)-5-(1,2-dihydrotetrazol-5-ylidene)quinolin-8-one(5z)-5-(1,2-dihydrotetrazol-5-ylidene)quinolin-8-one