1,3-Dimethyl-5-pyrazolone

C5H8N2OCAS 2749-59-9112.13 g/mol

NNO
AmideHydrazoneLactam

Properties

Molecular formula
C5H8N2O
Molar mass
112.13 g/mol
Exact mass
112.0637 Da
Melting point
122 °C
Boiling point
88–89 °C (at 10 Torr)
logP
0.22Crippen estimate
Polar surface area
32.7 Ų
H-bond donors / acceptors
0 / 2
Rotatable bonds
0

Hazards

Warning
Irritant (GHS07)Health Hazard (GHS08)

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

Precautionary statements

P203, P264, P264+P265, P270, P273, P280, P301+P317, P302+P352, P305+P351+P338, P318, P321, P330, P332+P317, P337+P317, P362+P364, P405, P501

Identifiers

CAS number
2749-59-9
SMILES
CC1=NN(C)C(=O)C1
InChIKey
NDELSWXIAJLWOU-UHFFFAOYSA-N
InChI
InChI=1S/C5H8N2O/c1-4-3-5(8)7(2)6-4/h3H2,1-2H3

Weigh it out

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

Names and synonyms

10 names
  • 3H-Pyrazol-3-one, 2,4-dihydro-2,5-dimethyl-
  • 2-Pyrazolin-5-one, 1,3-dimethyl-
  • 2,4-Dihydro-2,5-dimethyl-3H-pyrazol-3-one
  • 1,3-Dimethyl-5-pyrazolinone
  • 1,3-Dimethyl-2-pyrazolin-5-one
  • NSC 304
  • 2,5-Dimethyl-2,4-dihydro-pyrazol-3-one
  • 1,3-Dimethyl-4,5-dihydro-1H-pyrazol-5-one
  • 2,5-Dimethyl-4H-pyrazol-3-one
  • 1,3-Dimethyl-1H-pyrazol-5(4H)-one

Work with 1,3-Dimethyl-5-pyrazolone

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue. All similar compounds

Same formula

Elsewhere