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CAS No.: | 675-09-2 |
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Name: | 4,6-Dimethyl-2-pyrone |
Article Data: | 28 |
Molecular Structure: | |
Formula: | C7H8 O2 |
Molecular Weight: | 124.139 |
Synonyms: | Sorbicacid, 5-hydroxy-3-methyl-, d-lactone (6CI,7CI); 2,4-Dimethyl-a-pyrone; 4,6-Dimethyl-2-pyranone;4,6-Dimethyl-2-pyrone; 4,6-Dimethyl-2H-pyran-2-one; 4,6-Dimethyl-a-pyrone; Mesitene lactone; NSC402790 |
EINECS: | 211-618-7 |
Density: | 1.065 g/cm3 |
Melting Point: | 48-50 ºC |
Boiling Point: | 245 ºC |
Flash Point: | 90.1 ºC |
Solubility: | 242.4g/L(59.7 oC) |
Appearance: | yellow solid |
Safety: | Moderately toxic by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes. See also COUMARIN. |
PSA: | 30.21000 |
LogP: | 1.25660 |
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IUPAC Name: 4,6-Dimethylpyran-2-one
Synonyms: 2,4-Dimethyl-alpha-pyrone ; 4,6-Dimethyl-2h-pyran-2-on ; 4,6-Dimethylcoumalin ; Mesitene lactone ; Sorbic acid, 5-hydroxy-3-methyl-, delta-lactone ; 4,6-Dimethyl-pyran-2-one ; 4,6-Dimethyl-alpha-pyrone ; 4,6-Dimethyl-2-pyrone
Molecular Structure :
Molecular Formula: C7H8O2
Molecular Weight: 124.14
CAS NO: 675-09-2
EINECS: 211-618-7
Product Categories: Miscellaneous
Mol File: 675-09-2.mol
Index of Refraction: 1.485
Surface Tension: 30.5 dyne/cm
Density: 1.065 g/cm3
Flash Point: 90.1 °C
Melting point 48-50 ºC
Enthalpy of Vaporization: 48.21 kJ/mol
Boiling Point: 245 °C at 760 mmHg
Vapour Pressure: 0.0294 mmHg at 25°C
Appearance: 4,6-Dimethylcoumalin (CAS NO. 675-09-2) is white to light yellow crystal powder.
1. | ipr-mus LD50:750 mg/kg | APTOA6 Acta Pharmacologica et Toxicologica. 2 (1946),109. |
Reported in EPA TSCA Inventory.
Moderately toxic by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating fumes. See also COUMARIN.
Safety Statements 24/25
S24/25: When 4,6-Dimethylcoumalin (CAS NO. 675-09-2) is used ,avoid contact with skin and eyes.
WGK Germany 3
RTECS UQ0700000
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.
Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage: Store 4,6-Dimethylcoumalin (CAS NO. 675-09-2) in a cool, dry place. Store in a tightly closed container.