[Co(C6H6N2O)2(H2O)4](C7H5O3)2·4H2O	F(000) = 754
Mr = 721.53	Dx = 1.573 Mg m−3
Monoclinic, P21/n	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2yn	Cell parameters from 9057 reflections
a = 6.7032 (2) Å	θ = 2.4–28.4°
b = 17.0523 (4) Å	µ = 0.65 mm−1
c = 13.5406 (3) Å	T = 100 K
β = 100.194 (3)°	Block, orange
V = 1523.32 (7) Å3	0.29 × 0.28 × 0.14 mm
Z = 2