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Merck
CN

8.02670

Cyclopentanone

for synthesis

Synonym(s):

Cyclopentanone

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About This Item

Empirical Formula (Hill Notation):
C5H8O
CAS Number:
Molecular Weight:
84.12
UNSPSC Code:
12352115
EC Index Number:
204-435-9
NACRES:
NA.22
MDL number:
Grade:
synthesis grade
Assay:
≥99.0% (GC)
Bp:
131 °C/1013 hPa
Vapor pressure:
11.5 hPa ( 20 °C)
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Product Name

Cyclopentanone, for synthesis

SMILES string

O=C1CCCC1

InChI

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

InChI key

BGTOWKSIORTVQH-UHFFFAOYSA-N

grade

synthesis grade

vapor pressure

11.5 hPa ( 20 °C)

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)

dilution

(for synthesis)

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

Quality Level

Analysis Note

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

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).

pictograms

FlameExclamation mark

signalword

Warning

Hazard Classifications

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

Storage Class

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
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