Na2C4N2H7SO4Cl crystallizes in the orthorhombic Imma space group. Na(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent Cl(1) atoms to form a mixture of distorted face and corner-sharing NaCl2O4 octahedra. The corner-sharing octahedral tilt angles range from 0-74°. Both Na(1)-O(1) bond lengths are 2.51 Å. Both Na(1)-O(2) bond lengths are 2.36 Å. Both Na(1)-Cl(1) bond lengths are 2.72 Å. There are three inequivalent C sites. In the first C site, 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 1.36 Å. The C(1)-S(1) bond length is 1.68 Å. In the second C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(1), and one O(1) atom. The C(2)-C(3) bond length is 1.40 Å. The C(2)-N(1) bond length is 1.40 Å. The C(2)-O(1) bond length is 1.28 Å. In the third C site, C(3) is bonded in a distorted single-bond geometry to two equivalent C(2) and one H(1) atom. The C(3)-H(1) bond length is 1.09 Å. N(1) is bonded in a trigonal planar geometry to one C(1), one C(2), and one H(2) atom. The N(1)-H(2) bond length is 1.03 Å. There are four inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(3) atom. In the second H site, H(2) is bonded in a single-bond geometry to one N(1) atom. In the third H site, H(3) is bonded in a single-bond geometry to one O(1) and one O(2) atom. The H(3)-O(1) bond length is 1.73 Å. The H(3)-O(2) bond length is 1.00 Å. In the fourth H site, H(4) is bonded in a single-bond geometry to one O(2) atom. The H(4)-O(2) bond length is 0.99 Å. S(1) is bonded in a single-bond geometry to one C(1) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Na(1), one C(2), and one H(3) atom. In the second O site, O(2) is bonded in a distorted water-like geometry to two equivalent Na(1), one H(3), and one H(4) atom. Cl(1) is bonded in a 4-coordinate geometry to four equivalent Na(1) atoms. Linkers: 2 O=C1[CH]C(=O)NC(=S)N1. Metal clusters: 4 [Na]. The MOF has largest included sphere 1.46 A, density 1.82 g/cm3, surface area 2800.39 m2/g, accessible volume 0.07 cm3/g