LaC3H4O8(CH3)2 crystallizes in the orthorhombic Fddd space group. The structure consists of thirty-two 02329_fluka molecules inside a LaC3H4O8 framework. In the LaC3H4O8 framework, La(1) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and four equivalent O(2) atoms. Both La(1)-O(1) bond lengths are 2.63 Å. Both La(1)-O(3) bond lengths are 2.61 Å. Both La(1)-O(4) bond lengths are 2.64 Å. There are two shorter (2.49 Å) and two longer (2.74 Å) La(1)-O(2) bond lengths. There are two inequivalent C sites. In the first C site, C(3) is bonded in a distorted bent 120 degrees geometry to two equivalent O(3) atoms. Both C(3)-O(3) bond lengths are 1.26 Å. In the second C site, C(1) is bonded in a distorted bent 120 degrees geometry to one O(1) and one O(2) atom. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.29 Å. There are two inequivalent H sites. In the first H site, H(4) is bonded in a distorted linear geometry to one O(3) and one O(4) atom. The H(4)-O(3) bond length is 1.62 Å. The H(4)-O(4) bond length is 1.01 Å. In the second H site, H(5) is bonded in a single-bond geometry to one O(4) atom. The H(5)-O(4) bond length is 0.97 Å. There are four inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to one La(1) and one C(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to two equivalent La(1) and one C(1) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one La(1), one C(3), and one H(4) atom. In the fourth O site, O(4) is bonded in a water-like geometry to one La(1), one H(4), and one H(5) atom. Linkers: 2 [O]C(=O)C([O])=O. Metal clusters: 4 [La]. The MOF has largest included sphere 2.16 A, density 2.07 g/cm3, surface area 3348.67 m2/g, accessible volume 0.15 cm3/g