499-78-5

Name 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
CAS 499-78-5
EINECS(EC#) 207-891-7
Molecular Formula C6H4O5
MDL Number MFCD03085981
Molecular Weight 156.09
MOL File 499-78-5.mol
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Chemical Properties

Melting point  284-294 °C
Boiling point  240.29°C (rough estimate)
density  1.5720 (rough estimate)
refractive index  1.6400 (estimate)
form  solid
pka 1.70±0.20(Predicted)
Water Solubility  5.1g/L(25 ºC)
InChI 1S/C6H4O5/c7-3-1-5(6(9)10)11-2-4(3)8/h1-2,8H,(H,9,10)
InChIKey UUUICOMMFFTCHS-UHFFFAOYSA-N
SMILES OC(=O)C1=CC(=O)C(O)=CO1
EPA Substance Registry System 4H-Pyran-2-carboxylic acid, 5-hydroxy-4-oxo- (499-78-5)

Safety Data

Hazard Codes  Xn
Risk Statements 
WGK Germany  3
TSCA  TSCA listed
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral

Hazard Information

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