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2-Oxo-2H-pyran-5-carboxylic acid

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2-Oxo-2H-pyran-5-carboxylic acid

Molecular formula: C6H4O4 CAS# 500-05-0
Categories: Carboxylic acid , Lactone
Names
English:
.alpha.-Pyrone-5-carboxylic acid
2-Oxo-1(2H)-pyran-5-carboxylic acid
2-Oxo-2H-pyran-5-carboxylic acid(IUPAC)
2-Oxopyran-5-carboxylic acid
2-Pentenedioicacid, 4-(hydroxymethylene)-, d-lactone
2-Pyrone-5-carboxylic acid
2H-Pyran-5-carboxylic acid, 2-oxo-(CAS)
6-oxopyran-3-carboxylic acid(IUPAC)
Coumalic acid
Cumalic acid
EINECS:207-899-0
Glutaconic acid, 4-(hydroxymethylene)-, d-lactone (7CI)
a-Pyrone-5-carboxylic acid
alpha-Pyrone-5-carboxylic acid

Variants of the formula:

HO/`|O|\/\\|\O`\`/O`\`||
CO2H`\`/`\\`|`\O\/O\||
`/`=`\<`=O>/O-\\-<//O>\OH
OH|`/O/\/\|<\\O>`/O`\`|_o
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent