4,6-Dimethyl-2-pyrone
Synonym(s):4,6-Dimethyl-2H-pyran-2-one
- CAS NO.：675-09-2
- Empirical Formula: C7H8O2
- Molecular Weight: 124.14
- MDL number: MFCD00075555
- EINECS: 211-618-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:13:10
What is 4,6-Dimethyl-2-pyrone?
Chemical properties
white to light yellow crystal powder
The Uses of 4,6-Dimethyl-2-pyrone
4,6-Dimethyl-α-pyrone (Me21) has been used in the preparation of G4C{Me21} via reacting with tetra-p-sulfocalix[4]arene (C) and guanidine hydrochloride (GCl). It may be used in the preparation of host-guest complex G4C{Me21} by reacting with crystalline guanidinium-sulfonate-calixarene (G4C). This complex on UV irradiation afforded 1,3-dimethylcyclobutadiene (Me2CBD).
General Description
4,6-Dimethyl-α-pyrone was immobilized in a guanidinium-sulfonate-calixarene (G4C) crystalline network, which upon exposure to ultraviolet irradiation, transforms the entrapped 4,6-dimethyl-α-pyrone into a 4,6-dimethyl-β-lactone. Thin solid films layers of 4,6-dimethyl-α-pyrone on UV irradiation at -190°C were investigated.
Properties of 4,6-Dimethyl-2-pyrone
| Melting point: | 48-50 °C (lit.) |
| Boiling point: | 170.92°C (rough estimate) |
| Density | 1.0538 (rough estimate) |
| refractive index | 1.3810 (estimate) |
| Flash point: | >230 °F |
| form | Crystalline Low Melting Mass |
| color | Yellow |
| Odor | at 10.00 % in dipropylene glycol. sweet caramel sugar green licorice balsam gourmand |
| Water Solubility | 242.4g/L(59.7 ºC) |
| CAS DataBase Reference | 675-09-2(CAS DataBase Reference) |
| NIST Chemistry Reference | 2H-Pyran-2-one, 4,6-dimethyl-(675-09-2) |
| EPA Substance Registry System | 2H-Pyran-2-one, 4,6-dimethyl- (675-09-2) |
Safety information for 4,6-Dimethyl-2-pyrone
Computed Descriptors for 4,6-Dimethyl-2-pyrone
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