5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid Structure

5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid

Chemical Properties

Melting point 284-294 °C
Boiling point 240.29°C (rough estimate)
Density  1.5720 (rough estimate)
refractive index  1.6400 (estimate)
pka 1.70±0.20(Predicted)
form  solid
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)
UNSPSC Code 12352100
NACRES NA.22

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordWarning
Hazard statements H302
Precautionary statements P280-P305+P351+P338
Hazard Codes  Xn
Risk Statements  22
WGK Germany  3
TSCA  TSCA listed
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral

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5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid Chemical Properties,Usage,Production

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