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In the title compound, C 14 H 11 BrF 3 N 5 O 2 , the pyrimidine ring adopts a flattened envelope conformation with  sp3 -hybridized carbon as the flap [deviation = 0.177 (3) Å]. The dihedral angle between tetra­zole and bromo­phenyl rings is 84.3 (1)°. In the crystal, mol­ecules are linked into centrosymmetric dimers by pairs of N—H⋯N hydrogen bonds.

Ethyl 7-(4-bromophenyl)-5-trifluoromethyl-4,7-dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylate