Protocatechuic acid

CAS Registry Number®

99-50-3
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CAS Name

Protocatechuic acid

Molecular Formula

C7H6O4

Molecular Mass

154.12

Cite this Page

Protocatechuic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=99-50-3 (retrieved 2024-04-26) (CAS RN: 99-50-3).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    194 °C

  • Density (2)

    1.54 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C7H6O4/c8-5-2-1-4(7(10)11)3-6(5)9/h1-3,8-9H,(H,10,11)

InChIKey

InChIKey=YQUVCSBJEUQKSH-UHFFFAOYSA-N

SMILES

C(O)(=O)C1=CC(O)=C(O)C=C1

Canonical SMILES

O=C(O)C1=CC=C(O)C(O)=C1

Other Names for this Substance

  • Benzoic acid, 3,4-dihydroxy-
  • Protocatechuic acid
  • 3,4-Dihydroxybenzoic acid
  • 4-Carboxy-1,2-dihydroxybenzene
  • 4,5-Dihydroxybenzoic acid

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