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3,4-Dihydroxy-benzoic acid

View entire compound with spectra: 24 NMR, 3 FTIR, 1 Raman, and 9 MS (GC)

3,4-Dihydroxy-benzoic acid
SpectraBase Compound ID L32qSb6TctN
InChI InChI=1S/C7H6O4/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,8-9H,(H,10,11)
InChIKey YQUVCSBJEUQKSH-UHFFFAOYSA-N
Mol Weight 154.12 g/mol
Molecular Formula C7H6O4
Exact Mass 154.026609 g/mol

1H Nuclear Magnetic Resonance (NMR) Spectrum

1H Nuclear Magnetic Resonance (NMR) Spectrum

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SpectraBase Spectrum ID 6l88MY72wWS
Name 3,4-Dihydroxybenzoic acid
Source of Sample Sigma-Aldrich Co. LLC.
Catalog Number D109800
CAS Registry Number 99-50-3
Copyright Copyright © 2021-2025 Sigma-Aldrich Co. LLC. - Database Compilation Copyright © 2021-2025 John Wiley & Sons, Inc. All Rights Reserved.
Formula C7H6O4
InChI 1S/C7H6O4/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,8-9H,(H,10,11)
InChIKey YQUVCSBJEUQKSH-UHFFFAOYSA-N
Observed nucleus 1H
Purity 97%
Solvent DMSO-d6
Source of Spectrum Sigma-Aldrich Co. LLC.
Synonyms Protocatechuic acid
Wiley ID SIAL_1HNMR_011232