Gentisic acid

• Formula: C₅H₁₁NO₂
• Molecular weight: 117.1463
• IUPAC Standard InChI: InChI=1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11) Copy

  
• IUPAC Standard InChIKey: WXTMDXOMEHJXQO-UHFFFAOYSA-N Copy
• CAS Registry Number: 490-79-9
• Chemical structure:
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• Other names: Benzoic acid, 2,5-dihydroxy-; Gensigen; Gensigon; Hydroquinonecarboxylic acid; 2,5-Dihydroxybenzoic acid; 2,5-Dioxybenzoic acid; 5-Hydroxysalicylic acid; Gentisate; Salicylic acid, 5-hydroxy-; 2,5-Dhba; Kyselina 2,5-dihydroxybenzoova; Kyselina gentisinova; 3,6-Dihydroxybenzoic acid; Gentisinic acid; NSC 27224
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• Information on this page:
  • Reaction thermochemistry data
  • IR Spectrum
  • References
  • Notes
• Other data available:
  • Phase change data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
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Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: John E. Bartmess

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

C₇H₅O₄^- +  =

By formula: C₇H₅O₄^- + H⁺ = C₅H₁₁NO₂

IR Spectrum

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Coblentz Society, Inc.

Spectrum

A digitized version of this spectrum is not currently available.

Additional Data

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Breuker, Knochenmuss, et al., 1999
Breuker, K.; Knochenmuss, R.; Zenobi, R., Gas-phase basicities of deprotonated matrix-assisted laser desorption/ionization matrix molecules, Int. J. Mass Spectrom., 1999, 184, 1, 25-38, https://doi.org/10.1016/S1387-3806(98)14200-8 . [all data]

Notes

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• Symbols used in this document:
  

  ΔrG°	Free energy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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