In the crystal structure of the title compound [systematic name: N-(2,6-difluorophenyl)-5-methyl-1,2,4-triazolo[1,5-a]-pyrimidine-2-sulfonamide acetonitrile solvate], C12H9F2N 5-O2S·C2H3N, the planar bicyclic triazolopyrimidine system is bound to the 2,6-difluorobenzene group via an SO2-NH bridge, the C-S-N-C torsion angle being -77.85 (18)°; the dihedral angle formed by the bicyclic triazolopyrimidine system and the benzene ring is 128.0 (2)°. N-H⋯N bonds link the molecules into infinite chains running along the a axis of the crystal struc...
