CAS No: 499-78-5, Chemical Name: 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
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499-78-5 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid

product Name 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Synonyms 4H-Pyran-2-carboxylic acid, 5-hydroxy-4-oxo-; Comenic acid; 5-Hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Molecular Formula C6H4O5
Molecular Weight 156.093
InChI InChI=1/C6H4O5/c7-3-1-5(6(9)10)11-2-4(3)8/h1-2,8H,(H,9,10)
CAS Registry Number 499-78-5
EINECS 207-891-7
Molecular Structure 499-78-5 5-hydroxy-4-oxo-4H-pyran-2-carboxylic acid
Density 1.819g/cm3
Boiling point 420.7°C at 760 mmHg
Refractive index 1.66
Flash point 187.7°C
Vapour Pressur 7.71E-09mmHg at 25°C
Hazard Symbols
Risk Codes
Safety Description