CdC20N4H20SO5 crystallizes in the orthorhombic Pnma space group. Cd(1) is bonded to two equivalent N(1), one O(1), one O(4), and two equivalent O(3) atoms to form distorted CdN2O4 octahedra that share corners with two equivalent Cd(1)N2O4 octahedra,  a cornercorner with one S(1)O4 tetrahedra, and  an edgeedge with one S(1)O4 tetrahedra. The corner-sharing octahedral tilt angles are 60°. Both Cd(1)-N(1) bond lengths are 2.28 Å. The Cd(1)-O(1) bond length is 2.35 Å. The Cd(1)-O(4) bond length is 2.50 Å. There is one shorter (2.29 Å) and one longer (2.34 Å) Cd(1)-O(3) bond length. There are ten inequivalent C sites. In the first C site, C(7) is bonded in a distorted single-bond geometry to one C(8) and one H(7) atom. The C(7)-C(8) bond length is 1.41 Å. The C(7)-H(7) bond length is 1.09 Å. In the second C site, C(8) is bonded in a trigonal planar geometry to one C(7), one C(8), and one C(9) atom. The C(8)-C(8) bond length is 1.49 Å. The C(8)-C(9) bond length is 1.41 Å. In the third C site, C(9) is bonded in a distorted single-bond geometry to one C(10), one C(8), and one H(8) atom. The C(9)-C(10) bond length is 1.39 Å. The C(9)-H(8) bond length is 1.09 Å. In the fourth C site, C(10) is bonded in a distorted trigonal planar geometry to one C(5), one C(9), and one H(9) atom. The C(10)-C(5) bond length is 1.40 Å. The C(10)-H(9) bond length is 1.09 Å. In the fifth C site, C(1) is bonded in a trigonal planar geometry to one N(1), one N(2), and one H(1) atom. The C(1)-N(1) bond length is 1.33 Å. The C(1)-N(2) bond length is 1.36 Å. The C(1)-H(1) bond length is 1.09 Å. In the sixth C site, C(2) is bonded in a distorted bent 120 degrees geometry to one C(3), one N(1), and one H(2) atom. The C(2)-C(3) bond length is 1.37 Å. The C(2)-N(1) bond length is 1.38 Å. The C(2)-H(2) bond length is 1.09 Å. In the seventh C site, C(3) is bonded in a distorted bent 120 degrees geometry to one C(2), one N(2), and one H(3) atom. The C(3)-N(2) bond length is 1.38 Å. The C(3)-H(3) bond length is 1.08 Å. In the eighth C site, C(4) is bonded in a distorted trigonal non-coplanar geometry to one C(5), one N(2), one H(4), and one H(5) atom. The C(4)-C(5) bond length is 1.51 Å. The C(4)-N(2) bond length is 1.45 Å. The C(4)-H(4) bond length is 1.10 Å. The C(4)-H(5) bond length is 1.10 Å. In the ninth C site, C(5) is bonded in a trigonal planar geometry to one C(10), one C(4), and one C(6) atom. The C(5)-C(6) bond length is 1.40 Å. In the tenth C site, C(6) is bonded in a distorted single-bond geometry to one C(5) and one H(6) atom. The C(6)-H(6) bond length is 1.09 Å. There are two inequivalent N sites. In the first N site, N(1) is bonded in a trigonal planar geometry to one Cd(1), one C(1), and one C(2) atom. In the second N site, N(2) is bonded in a trigonal planar geometry to one C(1), one C(3), and one C(4) atom. There are ten inequivalent H sites. In the first H site, H(1) is bonded in a single-bond geometry to one C(1) atom. In the second H site, H(2) is bonded in a single-bond geometry to one C(2) atom. In the third H site, H(3) is bonded in a single-bond geometry to one C(3) atom. In the fourth H site, H(4) is bonded in a single-bond geometry to one C(4) atom. In the fifth H site, H(5) is bonded in a single-bond geometry to one C(4) atom. In the sixth H site, H(6) is bonded in a single-bond geometry to one C(6) atom. In the seventh H site, H(7) is bonded in a single-bond geometry to one C(7) atom. In the eighth H site, H(8) is bonded in a single-bond geometry to one C(9) atom. In the ninth H site, H(9) is bonded in a single-bond geometry to one C(10) atom. In the tenth H site, H(10) is bonded in a single-bond geometry to one O(1) atom. The H(10)-O(1) bond length is 0.99 Å. S(1) is bonded to one O(3), one O(4), and two equivalent O(2) atoms to form SO4 tetrahedra that share  a cornercorner with one Cd(1)N2O4 octahedra and  an edgeedge with one Cd(1)N2O4 octahedra. The corner-sharing octahedral tilt angles are 40°. The S(1)-O(3) bond length is 1.55 Å. The S(1)-O(4) bond length is 1.49 Å. Both S(1)-O(2) bond lengths are 1.48 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted water-like geometry to one Cd(1) and two equivalent H(10) atoms. In the second O site, O(2) is bonded in a single-bond geometry to one S(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Cd(1) and one S(1) atom. In the fourth O site, O(4) is bonded in a distorted L-shaped geometry to one Cd(1) and one S(1) atom. Linkers: 4 c1cn(Cc2ccc(-c3ccc(Cn4ccnc4)cc3)cc2)cn1. Metal clusters: 4 [Cd]. The MOF has largest included sphere 3.64 A, density 1.43 g/cm3, surface area 4434.37 m2/g, accessible volume 0.27 cm3/g