4-Hydroxy-2-oxopentanoic acid

4-Hydroxy-2-oxopentanoaic acid, also known as 4-hydroxy-2-oxovalerate, is formed by the decarboxylation of 4-oxalocrotonate by 4-oxalocrotonate decarboxylase, is degraded by 4-hydroxy-2-oxovalerate aldolase, forming acetaldehyde and pyruvate and is reversibly dehydrated by 2-oxopent-4-enoate hydratase to 2-oxopent-4-enoate.^[1]

4-Hydroxy-2-oxopentanoic acid

Names
Preferred IUPAC name 4-Hydroxy-2-oxopentanoic acid
Other names 4-Hydroxy-2-ketopentanoic acid; 4-Hydroxy-2-ketovaleric acid; 4-Hydroxy-2-oxovaleric acid; 4-Hydroxy-2-oxopentanoate; 4-Hydroxy-2-ketopentanoate; 4-Hydroxy-2-ketovalerate; 4-Hydroxy-2-oxovalerate; HKP
Identifiers
CAS Number	3318-73-8 N
3D model (JSmol)	Interactive image
ChEBI	CHEBI:17655
ChemSpider	121
KEGG	C03589
PubChem CID	124
UNII	Q7M6F8F7B9 Y
CompTox Dashboard (EPA)	DTXSID50954802
InChI InChI=1S/C5H8O4/c1-3(6)2-4(7)5(8)9/h3,6H,2H2,1H3,(H,8,9) Key: HFKQINMYQUXOCH-UHFFFAOYSA-N InChI=1/C5H8O4/c1-3(6)2-4(7)5(8)9/h3,6H,2H2,1H3,(H,8,9) Key: HFKQINMYQUXOCH-UHFFFAOYAC
SMILES O=C(O)C(=O)CC(O)C
Properties
Chemical formula	C5H8O4
Molar mass	132.115 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references