Chemistry:Coumalic acid
From HandWiki
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| Names | |
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| Preferred IUPAC name
2-Oxo-2H-pyran-5-carboxylic acid | |
| Other names
Cumalic acid
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| Identifiers | |
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| Properties | |
| C6H4O4 | |
| Molar mass | 140.094 g·mol−1 |
| Appearance | yellow solid |
| Melting point | 210 °C (410 °F; 483 K) |
| Hazards | |
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| GHS Signal word | Warning |
| H315, H319, H335 | |
| P261, P264, P264+265Script error: No such module "Preview warning".Category:GHS errors, P271, P280, P302+352, P304+340, P305+351+338, P319Script error: No such module "Preview warning".Category:GHS errors, P321, P332+317Script error: No such module "Preview warning".Category:GHS errors, P337+317Script error: No such module "Preview warning".Category:GHS errors, P362+364Script error: No such module "Preview warning".Category:GHS errors, P403+233, P405, P501 | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Coumalic acid is an organic compound with the molecular formula C6H4O4. Its melting point is around 210 °C.[1]
In laboratory coumalic acid may be obtained by self-condensation of malic acid in fuming sulfuric acid:[2]
References
- ↑ Wiley, Richard H.; Knabeschuh, Louis H. (1955). "'2-Pyrones. XIII. The Chemistry of Coumalic Acid and its Derivatives". Journal of the American Chemical Society 77: 1615. doi:10.1021/ja01611a062.
- ↑ Richard H. Wiley and Newton R. Smith (1951). "Coumalic acid". Organic Syntheses 31: 23. doi:10.15227/orgsyn.031.0023.
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