2-Phosphoglyceric acid (2PG), or 2-phosphoglycerate, is a glyceric acid which serves as the substrate in the ninth step of glycolysis. It is catalyzed by enolase into phosphoenolpyruvate (PEP), the penultimate step in the conversion of glucose to pyruvate.

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2-Phosphoglyceric acid

Names
IUPAC name 3-hydroxy-2-phosphonooxypropanoic acid
Other names 2PG
Identifiers
CAS Number	2553-59-5 N
3D model (JSmol)	Interactive image Interactive image
ChEBI	CHEBI:24344 N
ChemSpider	58 Y
PubChem CID	59
CompTox Dashboard (EPA)	DTXSID20948430
InChI InChI=1S/C3H7O7P/c4-1-2(3(5)6)10-11(7,8)9/h2,4H,1H2,(H,5,6)(H2,7,8,9) Y Key: GXIURPTVHJPJLF-UHFFFAOYSA-N Y InChI=1/C3H7O7P/c4-1-2(3(5)6)10-11(7,8)9/h2,4H,1H2,(H,5,6)(H2,7,8,9) Key: GXIURPTVHJPJLF-UHFFFAOYAQ
SMILES C(C(C(=O)O)OP(=O)(O)O)O O=P(O)(O)OC(C(=O)O)CO
Properties
Chemical formula	C3H7O7P
Molar mass	186.06 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

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Compound C00197 at KEGG Pathway Database. Enzyme 5.4.2.1 at KEGG Pathway Database. Compound C00631 at KEGG Pathway Database. Enzyme 4.2.1.11 at KEGG Pathway Database. Compound C00074 at KEGG Pathway Database.

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• 3-Phosphoglyceric acid