For citations & permissions, please see: Citations & Permissions - Wiley Science Solutions*

*Links on SpectraBase are not permalinks.
4-methylpyrazole-3-carboxylic acid
SpectraBase Compound ID AOFNS4bIh66
InChI InChI=1S/C5H6N2O2/c1-3-2-6-7-4(3)5(8)9/h2H,1H3,(H,6,7)(H,8,9)
InChIKey FNHVVMJBCILJGA-UHFFFAOYSA-N
Mol Weight 126.11 g/mol
Molecular Formula C5H6N2O2
Exact Mass 126.042927 g/mol
Copyright Copyright © 2002-2024 Wiley-VCH Verlag GmbH & Co. KGaA. All Rights Reserved.
Solvent DMSO-D6
Copyright Copyright © 2002-2024 Wiley-VCH Verlag GmbH & Co. KGaA. All Rights Reserved.
Solvent DMSO-D6
Copyright Copyright © 2016-2024 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent DMSO
Copyright Copyright © 2016-2024 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent DMSO-D6
Copyright Copyright © 2016-2024 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Solvent C5D5N
Copyright Copyright © 2016-2024 W. Robien, Inst. of Org. Chem., Univ. of Vienna. All Rights Reserved.
Copyright Copyright © 1980, 1981-2024 John Wiley & Sons, Inc. All Rights Reserved.
Source of Sample J. Elguero & R. Jacquier, Inst. Chem. Fac. Sci., Montpellier, France
Technique KBr WAFER
Copyright Copyright © 2008-2024 John Wiley & Sons, Inc. All Rights Reserved.
Solvent Methanol
Copyright Copyright © 2008-2024 John Wiley & Sons, Inc. All Rights Reserved.
Solvent Methanol
Copyright Copyright © 2008-2024 John Wiley & Sons, Inc. All Rights Reserved.
Solvent Methanol
Copyright Copyright © 2008-2024 John Wiley & Sons, Inc. All Rights Reserved.
Solvent Methanol
Copyright Copyright © 2008-2024 John Wiley & Sons, Inc. All Rights Reserved.
Solvent Methanol
Copyright Copyright © 2020-2024 John Wiley & Sons, Inc. All Rights Reserved.
Source of Spectrum G4-60-803-3
  • 4-bromopyrazole-3-carboxylic acid
  • FNHVVMJBCILJGA-UHFFFAOYSA-N
  • 4-METHYL-PYRAZOL-3-CARBONSAEURE
  • 4-METHYLPYRAZOLE-3(5)-CARBOXYLIC-ACID
  • 4-METHYLPYRAZOLE-3(OR 5)-CARBOXYLIC ACID
  • PYRAZOLE-3/OR 5/-CARBOXYLIC ACID, 4-METHYL-,
  • 4-Methyl-1H-pyrazole-3-carboxylic acid
  • 4-Methyl-3-pyrazolecarboxylic acid
  • 1H-PYRAZOLE-3-CARBOXYLIC ACID, 4-METHYL-
Title Journal or Book Year
Secondary Metabolites from the Sponge Tedania anhelans:  Isolation and Characterization of Two Novel Pyrazole Acids and Other Metabolites Journal of Natural Products 1997
13C NMR of pyrazoles Magnetic Resonance in Chemistry 1993
13C NMR chemical shifts of N‐unsubstituted‐ and N‐methyl‐pyrazole derivatives Organic Magnetic Resonance 1984

KnowItAll IR, Raman, and UV-Vis Spectral Libraries

Author: Wiley

The KnowItAll IR, Raman, and UV-Vis spectral libraries offer access to the world's largest collection of IR, Raman, and UV-Vis spectra, including the renowned Sadtler spectra. The libraries include a wide range of compounds from pure organics to industrial compounds. Learn more.

KnowItAll NMR Spectral Library

Author: Wiley

The KnowItAll NMR Spectral Library offers a comprehensive collection of NMR reference spectra, including NMR, CNMR, and XNMR, and covers a wide range of compounds including organics, polymers, monomers, metabolites, and more. Learn more.

KnowItAll Mass Spectral Library

Author: Wiley

The KnowItAll Mass Spectral Library offers a comprehensive collection of mass spectra, including the renowned Wiley Registry, and access to a wide range of compounds including pure organics, drugs, steroids, additives, geochemicals, petrochemicals, biomarkers, and more. Learn more.

NIST/EPA/NIH MS/MS Mass Spectral Library 2020 LR

Author: NIST

The NIST/EPA/NIH MS/MS 2020 libraries contain over 1,320,000 spectra for over 185,500 ions. The MS/MS libraries also contain metabolites, peptides (including biologically-relevant peptides), contaminants, lipids, and more. Learn more.

NIST/EPA/NIH MS/MS Mass Spectral Library 2020 HR

Author: NIST

The NIST/EPA/NIH MS/MS 2020 libraries contain over 1,320,000 spectra for over 185,500 ions. The MS/MS libraries also contain metabolites, peptides (including biologically-relevant peptides), contaminants, lipids, and more. Learn more.

Unknown Identification

Search your unknown spectrum against the world's largest collection of reference spectra

KnowItAll Campus Solutions

KnowItAll offers faculty and students at your school access to all the tools you need for spectral analysis and structure drawing & publishing! Plus, access the world's largest spectral library.