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| CAS No.: | 13494-06-9 |
|---|---|
| Name: | 3,4-Dimethyl-1,2-cyclopentanedione |
| Molecular Structure: | |
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| Formula: | C7H10O2 |
| Molecular Weight: | 126.15 |
| Synonyms: | 3,4-Dimethyl-1,2-cyclopentadione;3,4-Dimethylcyclopentane-1,2-dione; |
| EINECS: | 236-810-8 |
| Density: | 1.036 g/cm3 |
| Melting Point: | 68-72 °C(lit.) |
| Boiling Point: | 187.4 °C at 760 mmHg |
| Flash Point: | 63.6 °C |
| Solubility: | slightly soluble in water |
| Appearance: | slightly yellow to light beige crystalline powder |
| Safety: | 24/25 |
| PSA: | 34.14000 |
| LogP: | 0.80050 |
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Chemistry
IUPAC Name: 3,4-Dimethylcyclopentane-1,2-dione
Synonyms of 1,2-Cyclopentanedione,3,4-dimethyl- (CAS NO.13494-06-9 ): 1,2-Cyclopentanedione, 3,4-dimethyl- ; 3,4-Dimethyl-1,2-cyclopentadione ; 3,4-Dimethyl-1,2-cyclopentanedione
CAS NO: 13494-06-9
Molecular Formula: C7H10O2
Molecular Weight: 126.15
Molecular Structure: 
EINECS: 236-810-8
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 34.14 Å2
Index of Refraction: 1.45
Molar Refractivity: 32.73 cm3
Molar Volume: 121.6 cm3
Surface Tension: 30.9 dyne/cm
Density: 1.036 g/cm3
Flash Point: 63.6 °C
Enthalpy of Vaporization: 42.36 kJ/mol
Boiling Point: 187.4 °C at 760 mmHg
Vapour Pressure: 0.633 mmHg at 25°C
Melting Point: 68-72 °C(lit.)
Storage temp: 0-6°C
Water Solubility: slightly soluble
slightly yellow to light beige crystalline powder
Product Categories of 1,2-Cyclopentanedione,3,4-dimethyl- (CAS NO.13494-06-9 ): API intermediates;Alphabetical Listings;C-D;Flavors and Fragrances
Safety Profile
Safety Statements: 24/25
S24/25: Avoid contact with skin and eyes.
WGK Germany: 3
Specification
General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media: Use agent most appropriate to extinguish fire.
Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Storage: Store 1,2-Cyclopentanedione,3,4-dimethyl- (CAS NO.13494-06-9 ) in a cool, dry place. Keep container closed when not in use. Keep refrigerated. (Store below 4°C/39°F.)