Record Information
Version 1.0
Update Date 1/22/2018 11:54:54 AM
Metabolite IDPAMDB110737
Identification
Name: gentisate
Description:A dihydroxybenzoate that is the conjugate base of 2,5-dihydroxybenzoic acid; major species at pH 7.3.
Structure
Thumb
Synonyms:
  • gentisic acid
  • hydroquinonecarboxylic acid
  • 2,5-dihydroxybenzoate
  • 2,5-DHBA
  • 2,5-dihydroxybenzoic acid
  • 2,5-dioxybenzoic acid
  • 3,6-dihydroxybenzoic acid
  • 5-hydroxysalicylic acid
  • 5-hydroxysalicylate
Chemical Formula: C7H5O4
Average Molecular Weight: 153.11
Monoisotopic Molecular Weight: 154.026608681
InChI Key: WXTMDXOMEHJXQO-UHFFFAOYSA-M
InChI: InChI=1S/C7H6O4/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3,8-9H,(H,10,11)/p-1
CAS number: 490-79-9
IUPAC Name:2,5-dihydroxybenzoate
Traditional IUPAC Name: 2,5-dihydroxybenzoic acid
SMILES:C(=O)([O-])C1(=C(O)C=CC(O)=C1)
Chemical Taxonomy
Taxonomy DescriptionThis compound belongs to the class of organic compounds known as hydroxybenzoic acid derivatives. These are compounds containing a hydroxybenzoic acid (or a derivative), which is a benzene ring bearing a carboxyl and a hydroxyl groups.
Kingdom Organic compounds
Super ClassBenzenoids
Class Benzene and substituted derivatives
Sub ClassBenzoic acids and derivatives
Direct Parent Hydroxybenzoic acid derivatives
Alternative Parents
Substituents
  • Hydroxybenzoic acid
  • Benzoic acid
  • Benzoyl
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Phenoxide
  • Vinylogous acid
  • Carboxylic acid derivative
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Hydrocarbon derivative
  • Organic oxygen compound
  • Organic oxide
  • Organooxygen compound
  • Organic anion
  • Aromatic homomonocyclic compound
Molecular Framework Aromatic homomonocyclic compounds
External Descriptors
  • dihydroxybenzoate (CHEBI:58044)
  • a monocarboxylate, a hydroxy carboxylate (CPD-633)
Physical Properties
State: Solid
Charge:-1
Melting point: 199.5 °C
Experimental Properties:
PropertyValueReference
Melting Point199.5 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility5.0 mg/mL at 5 °CNot Available
LogP1.74SANGSTER (1994)
Predicted Properties
PropertyValueSource
Water Solubility12.3 mg/mLALOGPS
logP1.23ALOGPS
logP1.67ChemAxon
logS-1.1ALOGPS
pKa (Strongest Acidic)2.53ChemAxon
pKa (Strongest Basic)-5.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area77.76 Å2ChemAxon
Rotatable Bond Count1ChemAxon
Refractivity37.28 m3·mol-1ChemAxon
Polarizability13.78 Å3ChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Not Available
Reactions:
Pathways: Not Available
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies)splash10-0a4i-0849000000-d6f7b541cabdb5e20dd6View in MoNA
GC-MSGC-MS Spectrum - GC-MS (3 TMS)splash10-0a4i-3955000000-215d684d2fae395f2e76View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Negative (Annotated)splash10-0zfr-0900000000-816a84a65cefa1b31731View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Negative (Annotated)splash10-0a4i-1900000000-977e85749e8fa31315c5View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Negative (Annotated)splash10-0a4i-1900000000-086d66fbe2d41a2d725cView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-0udi-0900000000-e3a62163a69461ab2cffView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-0a4i-0900000000-06431a9cf0c877732fe5View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-0a4i-0900000000-e938fddf26a9bb2cd9e3View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-0a4i-0900000000-38ef6d9660431bec9b3bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negativesplash10-0a4i-0900000000-ac95d834c95477f325a7View in MoNA
LC-MS/MSLC-MS/MS Spectrum - MALDI-TOF (Voyager DE-PRO, Applied Biosystems) , Positivesplash10-004r-1913000000-eba82100caa3c2664508View in MoNA
LC-MS/MSLC-MS/MS Spectrum - MALDI-TOF (Voyager DE-PRO, Applied Biosystems) , Negativesplash10-0udi-0902000000-6cc114aa94b58c53c123View in MoNA
LC-MS/MSLC-MS/MS Spectrum - MALDI-TOF (Voyager DE-PRO, Applied Biosystems) , Positivesplash10-0k9i-0930000000-4388abc8fe86bc940e89View in MoNA
LC-MS/MSLC-MS/MS Spectrum - MALDI-TOF (Voyager DE-PRO, Applied Biosystems) , Negativesplash10-0udi-0901000000-077381dba9d80706a097View in MoNA
LC-MS/MSLC-MS/MS Spectrum - MALDI-TOF (Voyager DE-PRO, Applied Biosystems) , Positivesplash10-0fri-0930000000-4e24b1261f33fba704e2View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Positivesplash10-000b-9800000000-35424c6ac43370b30b89View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-0a4i-0900000000-56fe39ec90c2e54662dbView in MoNA
MSMass Spectrum (Electron Ionization)splash10-0f79-7900000000-4ac54ba9a72c8707055dView in MoNA
1D NMR1H NMR SpectrumNot Available
1D NMR1H NMR SpectrumNot Available
1D NMR13C NMR SpectrumNot Available
2D NMR[1H,13C] 2D NMR SpectrumNot Available
References
References:
  • Ohsako M, Matsumoto Y, Goto S: Transport of aspirin and its metabolites through human erythrocyte membrane. Biol Pharm Bull. 1993 Feb;16(2):154-7. [8364451 ]
  • Almaas R, Rootwelt T, Oyasaeter S, Saugstad OD: Ascorbic acid enhances hydroxyl radical formation in iron-fortified infant cereals and infant formulas. Eur J Pediatr. 1997 Jun;156(6):488-92. [9208249 ]
  • Verhaeghe BJ, Lefevere MF, De Leenheer AP: Solid-phase extraction with strong anion-exchange columns for selective isolation and concentration of urinary organic acids. Clin Chem. 1988 Jun;34(6):1077-83. [3378323 ]
  • Palumbo G, Carlucci G, Mazzeo P, Frieri G, Pimpo MT, Fanini D: Simultaneous determination of 5-aminosalicylic acid, acetyl-5-aminosalicylic acid and 2,5-dihydroxybenzoic acid in endoscopic intestinal biopsy samples in humans by high-performance liquid chromatography with electrochemical detection. J Pharm Biomed Anal. 1995 Dec;14(1-2):175-80. [8833980 ]
  • Grootveld M, Halliwell B: Aromatic hydroxylation as a potential measure of hydroxyl-radical formation in vivo. Identification of hydroxylated derivatives of salicylate in human body fluids. Biochem J. 1986 Jul 15;237(2):499-504. [3026319 ]
  • Peleg H, Noble AC: Perceptual properties of benzoic acid derivatives. Chem Senses. 1995 Aug;20(4):393-400. [8590024 ]
  • Buskin JN, Upton RA, Williams RL: Improved liquid-chromatography of aspirin, salicylate, and salicyluric acid in plasma, with a modification for determining aspirin metabolites in urine. Clin Chem. 1982 May;28(5):1200-3. [7074905 ]
  • Liu JH, Smith PC: Direct analysis of salicylic acid, salicyl acyl glucuronide, salicyluric acid and gentisic acid in human plasma and urine by high-performance liquid chromatography. J Chromatogr B Biomed Appl. 1996 Jan 12;675(1):61-70. [8634769 ]
  • Coudray C, Talla M, Martin S, Fatome M, Favier A: High-performance liquid chromatography-electrochemical determination of salicylate hydroxylation products as an in vivo marker of oxidative stress. Anal Biochem. 1995 May 1;227(1):101-11. [7668368 ]
  • Bochner F, Graham GG, Cham BE, Imhoff DM, Haavisto TM: Salicylate metabolite kinetics after several salicylates. Clin Pharmacol Ther. 1981 Aug;30(2):266-75. [7249509 ]
  • Cham BE, Bochner F, Imhoff DM, Johns D, Rowland M: Simultaneous liquid-chromatographic quantitation of salicylic acid, salicyluric acid, and gentisic acid in urine. Clin Chem. 1980 Jan;26(1):111-4. [7356541 ]
Synthesis Reference: Morris, Steward G. Preparation of gentisic acid and its fatty alcohol esters.Journal of the American Chemical Society (1949), 71 2056-7
Material Safety Data Sheet (MSDS) Download (PDF)
External Links:
ResourceLink
CAS490-79-9
ChEBI58044
ChemSpider144318
HMDBHMDB00152
KEGGC00628
MetaboLightsMTBLC58044
PubChem54675839