The CAS register number of Mesoxalic acid is 473-90-5. It also can be called as Ketomalonic acid and the IUPAC name about this chemical is 2-oxopropanedioic acid. The molecular formula about this chemical is C₃H₂O₅ and the molecular weight is 118.04.

Physical properties about Mesoxalic acid are: (1)ACD/LogP: -1.58; (2)ACD/LogD (pH 5.5): -6.26; (3)ACD/LogD (pH 7.4): -6.33; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 1; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 5; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 2; (11)Polar Surface Area: 69.67 Å²; (12)Index of Refraction: 1.504; (13)Molar Refractivity: 19.1 cm³; (14)Molar Volume: 64.4 cm³; (15)Polarizability: 7.57x10^-24cm³; (16)Surface Tension: 93.1 dyne/cm; (17)Density: 1.832 g/cm³; (18)Flash Point: 213 °C; (19)Enthalpy of Vaporization: 72.07 kJ/mol; (20)Boiling Point: 405.2 °C at 760 mmHg; (21)Vapour Pressure: 1.06E-07 mmHg at 25 °C.

Uses of Mesoxalic acid: it can be used to produce glycine. This reaction will need reagents of FeS, (NH₄)₂CO₃ and solvent of H₂O. The reaction time is 6 days with reaction temperature of 100 °C. The yield is about 86%.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(O)C(=O)C(=O)O
(2)InChI: InChI=1/C3H2O5/c4-1(2(5)6)3(7)8/h(H,5,6)(H,7,8)
(3)InChIKey: XEEVLJKYYUVTRC-UHFFFAOYAW
(4)Std. InChI: InChI=1S/C3H2O5/c4-1(2(5)6)3(7)8/h(H,5,6)(H,7,8)
(5)Std. InChIKey: XEEVLJKYYUVTRC-UHFFFAOYSA-N

The toxicity data are as follows: