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1,3-Dimethyl-5-Pyrazolone

CAS: 2749-59-9 | C5H8N2O

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 2749-59-9
Molecular Formula: C5H8N2O
Molecular Mass: 112.13 g/mol

Names and Synonyms:

1,3-Dimethyl-5-Pyrazolone
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-pyrazolone
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

Identifiers:

SMILES:
CC1=NN(C)C(=O)C1
InChI:
InChI=1S/C5H8N2O/c1-4-3-5(8)7(2)6-4/h3H2,1-2H3

Key Properties

Boiling Point
88-89 °C @ Press: 10 Torr CAS Common Chemistry
Melting Point
122 °C @ Solvent: Benzene CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 112.13 g/mol CAS Common Chemistry
112.13199999999999 g/mol RDKit
112.063662876 g/mol RDKit
Boiling Point 88-89 °C @ Press: 10 Torr CAS Common Chemistry
Canonical SMILES O=C1N(N=C(C)C1)C CAS Common Chemistry
InChI InChI=1S/C5H8N2O/c1-4-3-5(8)7(2)6-4/h3H2,1-2H3 CAS Common Chemistry
InChI Key InChIKey=NDELSWXIAJLWOU-UHFFFAOYSA-N CAS Common Chemistry
Melting Point 122 °C @ Solvent: Benzene CAS Common Chemistry
Name 1,3-Dimethyl-5-pyrazolone CAS Common Chemistry
Heavy Atom Count 8 RDKit
Hydrogen Bond Acceptors 2 RDKit
Hydrogen Bond Donors 0 RDKit
Rotatable Bonds 0 RDKit
Aromatic Ring Count 0 RDKit
Topological Polar Surface Area 32.67 Ų RDKit
LogP 0.22440000000000004 RDKit
Molar Refractivity 30.495999999999988 RDKit

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