2,3-Dioxopropanoic acid

2,3-dioxopropanoic acid
Names
	Other names mesoxalic semialdehyde; mesoxalaldehydic acid; dioxopropionic acid;
Identifiers
CAS Number	815-53-2 ;
3D model (JSmol)	Interactive image;
ChemSpider	3070187;
PubChem CID	3844765;
CompTox Dashboard (EPA)	DTXSID1021588 ;
	InChI InChI=1S/C3H2O4/c4-1-2(5)3(6)7/h1H,(H,6,7) Key: JSCNFEFJALUGBY-UHFFFAOYSA-N;
	SMILES O=CC(=O)C(=O)O;
Properties
Chemical formula	C3H2O4
Molar mass	102.045 g·mol−1
Melting point	214 °C (417 °F; 487 K)
Related compounds
Related compounds	3-Oxopropanoic acid; propanoic acid; 2-methylpropanoic acid;
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

2,3-Dioxopropanoic acid is an organic chemical compound with the molecular formula C₃H₂O₄ and a structural formula of O=C(O)C(C=O)=O. The compound is also known as mesoxalic aldehyde or formylglyoxylic acid. This is a highly oxidized, three-carbon carboxylic acid featuring two keto groups: aldehyde at C₃ and ketone at C₂.^[1]^[2]

References

^ "2,3-dioxopropanoic acid". chemsrc.com. Retrieved 23 January 2026.
^ "2,3-Dioxopropanoic acid, 98%". BLD Pharm. Retrieved 23 January 2026.

[1] "2,3-dioxopropanoic acid". chemsrc.com. Retrieved 23 January 2026.

[2] "2,3-Dioxopropanoic acid, 98%". BLD Pharm. Retrieved 23 January 2026.

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