Zn2C5N8H6O3 crystallizes in the orthorhombic Pnma space group. Zn(1) is bonded in a tetrahedral geometry to one N(1), one N(2), one N(3), and one O(1) atom. The Zn(1)-N(1) bond length is 1.98 Å. The Zn(1)-N(2) bond length is 2.01 Å. The Zn(1)-N(3) bond length is 2.02 Å. The Zn(1)-O(1) bond length is 1.96 Å. There are three inequivalent C sites. In the first C site, C(1) is bonded in a trigonal planar geometry to one N(1), one N(3), and one N(4) atom. The C(1)-N(1) bond length is 1.35 Å. The C(1)-N(3) bond length is 1.37 Å. The C(1)-N(4) bond length is 1.35 Å. In the second C site, C(2) is bonded in a trigonal planar geometry to one N(2), one N(3), and one H(3) atom. The C(2)-N(2) bond length is 1.32 Å. The C(2)-N(3) bond length is 1.35 Å. The C(2)-H(3) bond length is 1.09 Å. In the third C site, C(3) is bonded in a trigonal planar geometry to one O(2) and two equivalent O(1) atoms. The C(3)-O(2) bond length is 1.27 Å. Both C(3)-O(1) bond lengths are 1.31 Å. There are four inequivalent N sites. In the first N site, N(3) is bonded in a trigonal planar geometry to one Zn(1), one C(1), and one C(2) atom. In the second N site, N(4) is bonded in a trigonal non-coplanar geometry to one C(1), one H(1), and one H(2) atom. The N(4)-H(1) bond length is 1.03 Å. The N(4)-H(2) bond length is 1.02 Å. In the third N site, N(1) is bonded in a 3-coordinate geometry to one Zn(1), one C(1), and one N(2) atom. The N(1)-N(2) bond length is 1.39 Å. In the fourth N site, N(2) is bonded in a distorted bent 120 degrees geometry to one Zn(1), one C(2), and one N(1) atom. There are three inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one N(4) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(4) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(2) atom. There are two inequivalent O sites. In the first O site, O(2) is bonded in a single-bond geometry to one C(3) atom. In the second O site, O(1) is bonded in a bent 120 degrees geometry to one Zn(1) and one C(3) atom. Linkers: 3 NC1=[N]=CN=N1 ,5 NC1=NN=C[N]1. Metal clusters: 8 [Zn]. The MOF has largest included sphere 5.37 A, density 1.52 g/cm3, surface area 3414.80 m2/g, accessible volume 0.27 cm3/g