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8.02670

Sigma-Aldrich

Cyclopentanone

for synthesis

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Synonym(s):
Cyclopentanone
Empirical Formula (Hill Notation):
C5H8O
CAS Number:
120-92-3
Molecular Weight:
84.12
MDL number:
MFCD00001409
UNSPSC Code:
12352115
EC Index Number:
204-435-9
NACRES:
NA.22

vapor pressure

11.5 hPa ( 20 °C)

Quality Level

200

Assay

≥99.0% (GC)

form

liquid

autoignition temp.

445 °C

potency

>5000 mg/kg LD50, skin (Rabbit)

expl. lim.

1.6-10.8 % (v/v)

bp

131 °C/1013 hPa

mp

-58 °C

transition temp

flash point 27 °C

solubility

slightly soluble 9.18 g/L

density

0.95 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C5H8O/c6-5-3-1-2-4-5/h1-4H2

InChI key

BGTOWKSIORTVQH-UHFFFAOYSA-N

Application


  • Cyclopentanone as a catalyst in stereoselective synthesis: Research highlighted the use of cyclopentanone in enhancing substrate stereoselectivity during the isothiourea-catalyzed conjugate addition of cyclic alpha-substituted beta-ketoesters to alpha,beta-unsaturated aryl esters, providing a pathway for precision in chemical synthesis. (Yuan et al., 2023).

  • Role in the synthesis of metal complexes: Cyclopentanone contributed to the synthesis, structural determination, and reactivity study of complex metal systems such as trindane and truxene, underscoring its utility in advanced organic synthesis and materials science. (Lock et al., 2023).

  • Impact on the properties of fluorinated derivatives: A theoretical study involving cyclopentanone examined the molecular properties of fluorinated derivatives, highlighting its importance in the development of high-performance solvents and pharmaceutical intermediates. (Tshepelevitsh et al., 2023).

Analysis Note

Assay (GC, area%): ≥ 99.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.947 - 0.949
Identity (IR): passes test

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226 - H315 - H319

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

86.0 °F - closed cup

Flash Point(C)

30 °C - closed cup

Regulatory Information

危险化学品

Certificates of Analysis (COA)

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