3,3,4,4-Tetramethyltetrahydrofuran-2,5-dione
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| Preferred IUPAC name
3,3,4,4-Tetramethyloxolane-2,5-dione | |
| Other names
Tetrahydro-3,3,4,4-tetramethylfuran-2,5-dione; 3,3,4,4-tetramethytetrahydrofuran-2,5-quinone; dihydro-3,3,4,4-tetramethyl-2,5-furandione; tetramethylsuccinic anhydride; TMSA
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C8H12O3 | |
| Molar mass | 156.181 g·mol−1 |
| Appearance | White crystalline |
| Density | 1.044 g/cm3 |
| Melting point | 147 °C (297 °F; 420 K) |
| Boiling point | 226.1 °C (439.0 °F; 499.2 K) 760mmHg |
Refractive index (nD)
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1.434 |
| Hazards | |
| Flash point | 93.2 °C (199.8 °F; 366.3 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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In chemistry, 3,3,4,4-tetramethyltetrahydrofuran-2,5-dione is a heterocyclic compound with the formula C
8H
12O
3, or (CH3)2(COC2COO)(CH3)2. It is a white crystalline solid with a pungent camphoraceous odor.
The compound is also called 3,3,4,4-tetramethyloxolane-2,5-dione (its IUPAC name) or 3,3,4,4-tetramethylsuccinic anhydride, namely the anhydride of 2,2,3,3-tetramethylsuccinic acid, and sometimes abbreviated as TMSA. It can be seen as derivative of tetrahydrofuran-2,5-dione (oxolane-2,5-dione) with two methyl groups replacing two hydrogen atoms on each of the carbon atoms in the ring that are not adjacent to the ring oxygen.