[Mo(C15H22BN6)(C6H5S)2(NO)], Mr = 641.5, monoclinic, P2(1)/n, a = 10.898 (1), b = 18.484 (2), c = 15.989 (2) A, beta = 109.81 (1) degree, V = 3030.2 A3, Z = 4, Dx = 1.41, Dm = 1.41 g cm-3, lambda(Mo K alpha) = 0.7173 A, mu = 5.9 cm-1, F(000) = 1320, T = 293 K, wR = 0.047 for 3997 observed reflections. In each complex, the Mo atom is six-coordinate, ligated by a terminal NO group, a tridentate pyrazolylborate ligand and two benzenethiolate ligands. The structure is compared with that of similar complexes and the Mo-S bonding is discussed.