Record Information
Version1.0
Creation Date2016-09-30 22:19:57 UTC
Update Date2020-05-21 16:28:38 UTC
BMDB IDBMDB0000130
Secondary Accession Numbers
  • BMDB00130
Metabolite Identification
Common NameHomogentisic acid
DescriptionHomogentisic acid, also known as homogentisate or acid, homogentisic, belongs to the class of organic compounds known as 2(hydroxyphenyl)acetic acids. These are phenylacetic acids that carry a hydroxyl group at the 2-position. Homogentisic acid exists as a solid, possibly soluble (in water), and an extremely weak basic (essentially neutral) compound (based on its pKa) molecule. Homogentisic acid exists in all living organisms, ranging from bacteria to humans. Homogentisic acid is a potentially toxic compound.
Structure
Thumb
Synonyms
ValueSource
2,5-Dihydroxyphenylacetic acidChEBI
2-(3,6-DIHYDROXYPHENYL)acetIC ACIDChEBI
2,5-DihydroxyphenylacetateKegg
2-(3,6-DIHYDROXYPHENYL)acetateGenerator
HomogentisateGenerator
(2,5-Dihydroxyphenyl)-acetateHMDB
(2,5-Dihydroxyphenyl)-acetic acidHMDB
2,5-Dihydroxy-a-toluateHMDB
2,5-Dihydroxy-a-toluic acidHMDB
2,5-Dihydroxy-alpha-toluateHMDB
2,5-Dihydroxy-alpha-toluic acidHMDB
2,5-Dihydroxy-benzeneacetateHMDB
2,5-Dihydroxy-benzeneacetic acidHMDB
AlcaptonHMDB
Homogentisate acidHMDB
HomogentisinateHMDB
Homogentisinic acidHMDB
Melanic acidHMDB
Acid, homogentisicHMDB
Chemical FormulaC8H8O4
Average Molecular Weight168.1467
Monoisotopic Molecular Weight168.042258744
IUPAC Name2-(2,5-dihydroxyphenyl)acetic acid
Traditional Namehomogentisic acid
CAS Registry Number451-13-8
SMILES
OC(=O)CC1=C(O)C=CC(O)=C1
InChI Identifier
InChI=1S/C8H8O4/c9-6-1-2-7(10)5(3-6)4-8(11)12/h1-3,9-10H,4H2,(H,11,12)
InChI KeyIGMNYECMUMZDDF-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as 2(hydroxyphenyl)acetic acids. These are phenylacetic acids that carry a hydroxyl group at the 2-position.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassPhenylacetic acids
Direct Parent2(hydroxyphenyl)acetic acids
Alternative Parents
Substituents
  • 2(hydroxyphenyl)acetic acid
  • Hydroquinone
  • 1-hydroxy-2-unsubstituted benzenoid
  • Phenol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
Origin
  • Endogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cytoplasm
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point153 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility850 mg/mL at 25 °CNot Available
LogP0.86SANGSTER (1994)
Predicted Properties
PropertyValueSource
logP0.81ALOGPS
logP1ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)3.57ChemAxon
pKa (Strongest Basic)-5.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area77.76 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity41.33 m³·mol⁻¹ChemAxon
Polarizability15.57 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-000t-0945000000-2f4b9ef9c9ee6e7cd1edView in MoNA
GC-MSGC-MS Spectrum - GC-MS (3 TMS)splash10-0016-3955000000-1cdc64ab3032ff29df29View in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0a5c-0679000000-97890865f85a79efa2e6View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-000t-0945000000-2f4b9ef9c9ee6e7cd1edView in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0016-3955000000-1cdc64ab3032ff29df29View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-0002-0944000000-fd48cc27da661ce24833View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-00di-4900000000-ea40fc8d43156151710cView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (3 TMS) - 70eV, Positivesplash10-014i-5093000000-c342ba08a9bff049fc1cView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_3) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_2_3) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_3) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_2_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_2_2) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_2_3) - 70eV, PositiveNot AvailableView in JSpectraViewer
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_3_1) - 70eV, PositiveNot AvailableView in JSpectraViewer
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-00di-0900000000-9c395aa569b4b54f8681View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-00xs-9500000000-ab92286f0d5bc843814bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-014l-9000000000-35740a40f4fdf3e84c3cView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Negativesplash10-014i-0900000000-f4eba60d63bd99e18b8bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Negativesplash10-00di-0900000000-12e330dc18f0b128b961View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Negativesplash10-00di-0900000000-4bd53b0472edd31e8609View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Negativesplash10-00di-0900000000-7121173193a9ba3751a4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Negativesplash10-00di-1900000000-04eca21bf25c671b8b6eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-00di-0900000000-780d3740762c2ff89d9aView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-014i-0900000000-f4eba60d63bd99e18b8bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-00di-0900000000-12e330dc18f0b128b961View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-00di-0900000000-4bd53b0472edd31e8609View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-00di-0900000000-7121173193a9ba3751a4View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , negativesplash10-00di-1900000000-04eca21bf25c671b8b6eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , negativesplash10-00di-0900000000-9c85164306514c6d4c4bView in MoNA
LC-MS/MSLC-MS/MS Spectrum - , negativesplash10-00di-0900000000-867a4e32ba2d14fd0aadView in MoNA
LC-MS/MSLC-MS/MS Spectrum - 10V, Negativesplash10-00di-0900000000-ac8e05a9300b51b24e77View in MoNA
LC-MS/MSLC-MS/MS Spectrum - 40V, Negativesplash10-00di-1900000000-eeb664cef1197d609735View in MoNA
LC-MS/MSLC-MS/MS Spectrum - 20V, Negativesplash10-00di-0900000000-1d890267ec7f3a5843b3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0gb9-0900000000-a650bbb95019f3305d03View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-1900000000-94f13b2c7b9726353701View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-05tf-9300000000-968a6390a00dcd77e566View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-01b9-0900000000-0f9d5926d702af7d4d63View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-01b9-1900000000-7f257033d3b1952b3c27View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9800000000-bbcb0f0d7348cd1663b1View in MoNA
1D NMR1H NMR Spectrum (1D, 600 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 400 MHz, DMSO-d6, experimental)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 22.53 MHz, DMSO-d6, experimental)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Not AvailableView in JSpectraViewer
2D NMR[1H, 1H]-TOCSY. Unexported temporarily by An Chi on Oct 15, 2021 until json or nmrML file is generated. 2D NMR Spectrum (experimental)Not AvailableView in JSpectraViewer
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Cartilage
  • Kidney
  • Milk
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
CartilageExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
KidneyExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
MilkDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0000130
DrugBank IDDB08327
Phenol Explorer Compound IDNot Available
FooDB IDFDB030907
KNApSAcK IDC00007309
Chemspider ID759
KEGG Compound IDC00544
BioCyc IDHOMOGENTISATE
BiGG ID1485308
Wikipedia LinkHomogentisic_acid
METLIN ID331
PubChem Compound780
PDB IDNot Available
ChEBI ID44747
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Mung D, Li L: Development of Chemical Isotope Labeling LC-MS for Milk Metabolomics: Comprehensive and Quantitative Profiling of the Amine/Phenol Submetabolome. Anal Chem. 2017 Apr 18;89(8):4435-4443. doi: 10.1021/acs.analchem.6b03737. Epub 2017 Mar 28. [PubMed:28306241 ]

Enzymes

General function:
Amino acid transport and metabolism
Specific function:
Key enzyme in the degradation of tyrosine.
Gene Name:
HPD
Uniprot ID:
Q5EA20
Molecular weight:
44963.0
Reactions
4-Hydroxyphenylpyruvic acid + Oxygen → Homogentisic acid + Carbon dioxidedetails
General function:
Not Available
Specific function:
Not Available
Gene Name:
HGD
Uniprot ID:
B8YB76
Molecular weight:
49997.0
Reactions
Homogentisic acid + Oxygen → Maleylacetoacetic aciddetails