X-ray powder diffraction data, unit-cell parameters, and space group for a novel platinum-based anticancer complex, Pt(C6H10N2)Br2, are presented [a = 10.049 (1) Å, b = 9.240 (2) Å, c = 11.497 (2) Å, β = 101.945 (3)°, unit-cell volume V = 1044.41 Å3, Z = 4, and space group P21/c]. All the measured lines were indexed and are consistent with the P21/c space group. No detectable impurities were observed.