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Meldrum's acid
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Meldrum's acid or 2,2-dimethyl-1,3-dioxane-4,6-dione is an organic compound with formula C6H8O4. Its molecule has a heterocyclic core with four carbon and two oxygen atoms; the formula can also be written as [−O−(C(CH3)2)−O−(C=O)−(CH2)−(C=O)−].
Quick Facts Names, Identifiers ...
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Names | |
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Preferred IUPAC name
2,2-Dimethyl-1,3-dioxane-4,6-dione | |
Other names
Isopropylidene malonate | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.016.358 ![]() |
PubChem CID |
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CompTox Dashboard (EPA) |
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Properties | |
C6H8O4 | |
Molar mass | 144.126 g·mol−1 |
Melting point | 94 to 95 °C (201 to 203 °F; 367 to 368 K) (decomposes)[1] |
Acidity (pKa) | 4.97 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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It is a crystalline colorless solid, sparingly soluble in water. It decomposes on heating with release of carbon dioxide and acetone.[2][3]