CuC3N3H3S3Br crystallizes in the cubic Pa-3 space group. The structure consists of a CuC3N3H3S3Br framework. Cu(1) is bonded in a tetrahedral geometry to three equivalent S(1) and one Br(1) atom. All Cu(1)-S(1) bond lengths are 2.27 Å. The Cu(1)-Br(1) bond length is 2.53 Å. C(1) is bonded in a distorted trigonal planar geometry to two equivalent N(1) and one S(1) atom. Both C(1)-N(1) bond lengths are 1.37 Å. The C(1)-S(1) bond length is 1.66 Å. N(1) is bonded in a trigonal planar geometry to two equivalent C(1) and one H(1) atom. The N(1)-H(1) bond length is 1.04 Å. H(1) is bonded in a single-bond geometry to one N(1) and one Br(1) atom. The H(1)-Br(1) bond length is 2.30 Å. S(1) is bonded in a water-like geometry to one Cu(1) and one C(1) atom. Br(1) is bonded in a 4-coordinate geometry to one Cu(1) and three equivalent H(1) atoms. Linkers: 8 S=c1[nH]c(=S)[nH]c(=S)[nH]1. Metal clusters: 8 [S][Cu]([S])([S])Br. RCSR code: srs. The MOF has largest included sphere 1.68 A, density 2.61 g/cm3, surface area 2891.57 m2/g, accessible volume 0.09 cm3/g