2-ACETYLCYCLOPENTANONE
Synonym(s):2-Acetylcyclopentanone
- CAS NO.：1670-46-8
- Empirical Formula: C7H10O2
- Molecular Weight: 126.15
- MDL number: MFCD00001413
- EINECS: 216-797-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:19:56
What is 2-ACETYLCYCLOPENTANONE?
Chemical properties
clear light yellow to brown liquid
Purification Methods
Dissolve the ketone in pet ether (b 30-60o), wash it with saturated aqueous NaHCO3, dry over Drierite and fractionate in a vacuum. It gives a violet colour with ethanolic FeCl3 and is only slowly hydrolysed by 10% aqueous KOH but rapidly on boiling to yield 6-oxoheptanoic acid. [Manyik et al. J Am Chem Soc 75 5030 1953, Acheson J Chem Soc 4232 1956, UV: Martin & Frenelius J Am Chem Soc 81 2342 1959.] It gives a gray green Cu salt from Et2O/pentane, m 237-238o [House & Wasson J Am Chem Soc 79 1488 1957].
Properties of 2-ACETYLCYCLOPENTANONE
| Melting point: | 60-70℃ |
| Boiling point: | 72-75 °C/8 mmHg (lit.) |
| Density | 1.043 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 163 °F |
| storage temp. | Store at +2°C to +8°C. |
| form | clear liquid |
| pka | 10.87±0.20(Predicted) |
| Specific Gravity | 1.043 |
| color | Colorless to Light yellow to Light orange |
| BRN | 1857601 |
| CAS DataBase Reference | 1670-46-8(CAS DataBase Reference) |
| EPA Substance Registry System | Cyclopentanone, 2-acetyl- (1670-46-8) |
Safety information for 2-ACETYLCYCLOPENTANONE
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H227:Flammable liquids H302:Acute toxicity,oral |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for 2-ACETYLCYCLOPENTANONE
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