(1,4-Dihydro-1,4-bis(1,3,4-thiadiazol-2-yl)-1,2,4,5-tetrazine-3,6-diyl)bis(phenylmethanone) 85810-98-6 Methanone, (1,4-dihydro-1,4-bis(1,3,4-thiadiazol-2-yl)-1,2,4,5-tetrazine-3,6-diyl)bis(phenyl-