Cyclopentenone

C5H6OCAS 930-30-382.10 g/mol

Open in Covalent MOL file
O
AlkeneKetone

Properties

Molecular formula
C5H6O
Molar mass
82.10 g/mol
Exact mass
82.0419 Da
Density
1.004 g/mL (at 20 °C)
Boiling point
136 °C
logP
0.91Crippen estimate
Polar surface area
17.1 Ų
H-bond donors / acceptors
0 / 1
Rotatable bonds
0

Hazards

Warning
Flammable (GHS02)Irritant (GHS07)

Aggregated from 50 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Precautionary statements

P210, P233, P240, P241, P242, P243, P261, P271, P280, P303+P361+P353, P304+P340, P319, P370+P378, P403+P233, P403+P235, P405, P501

Identifiers

CAS number
930-30-3
SMILES
O=C1C=CCC1
InChIKey
BZKFMUIJRXWWQK-UHFFFAOYSA-N
InChI
InChI=1S/C5H6O/c6-5-3-1-2-4-5/h1,3H,2,4H2

Weigh it out

Type any one amount. The others follow from the molar mass and density.

Names and synonyms

7 names
  • 2-Cyclopenten-1-one
  • Cyclopenten-3-one
  • 2-Cyclopentenone
  • 1-Cyclopenten-3-one
  • NSC 73117
  • 1-Cyclopenten-5-one
  • Cyclopent-2-en-1-one

Reactions

Work with Cyclopentenone

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Boiling point under vacuumAt any pressure, from its normal boiling point Isotope patternExact mass and the mass spectrum pattern

Similar compounds

Cyclohexenone930-68-770 % similar 2-Cyclohepten-1-one1121-66-067 % similar 1,4-Cyclohex-2-enedione4505-38-856 % similar 2-Cyclopentene-1,4-dione930-60-940 % similar 4,4-Dimethyl-2-cyclohexen-1-one1073-13-836 % similar 2-Octen-4-one4643-27-036 % similar 5,6-Dihydro-2H-pyran-2-one3393-45-135 % similar 3-Hepten-2-one1119-44-432 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Same formula

3-Cyclopenten-1-one14320-37-7 2-Methylfuran534-22-5 3-Methylfuran930-27-8

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia