Record Information
Version1.0
Creation Date2014-08-29 06:37:15 UTC
Update Date2026-04-02 23:56:40 UTC
Accession NumberCHEM003338
Identification
Common NameImidazoleacetic acid
ClassSmall Molecule
Description
Imidazoleacetic acid is a metabolite product of Histamine metabolism. It is present in normal urine and increased in histidinemic patients. (1).
Contaminant Sources
  • FooDB Chemicals
  • HMDB Contaminants - Urine
  • T3DB toxins
Contaminant Type
  • Animal Toxin
  • Food Toxin
  • Metabolite
  • Natural Compound
  • Organic Compound
Chemical Structure
Synonyms
ValueSource
1H-Imidazole-4-acetic acidChEBI
4(5)-ImidazoleacetateChEBI
4-ImidazoleacetateChEBI
Imidazole-4-acetateChEBI
1H-Imidazole-4-acetateGenerator
4(5)-Imidazoleacetic acidGenerator
4-Imidazoleacetic acidGenerator
Imidazole-4-acetic acidGenerator
ImidazoleacetateGenerator
1H-Imidazol-4-ylacetic acidHMDB
IAAHMDB
IMACHMDB
Imidazol-4-ylacetateHMDB
Imidazol-4-ylacetic acidHMDB
Imidazole acetateHMDB
Imidazolyl-4-acetic acidHMDB
IZCHMDB
Lopac-I-0375HMDB
Imidazole-4-acetic acid, sodium saltHMDB
Imidazole-4-acetic acid hydrochlorideHMDB
Chemical FormulaC5H6N2O2
Average Molecular Mass126.113 g/mol
Monoisotopic Mass126.043 g/mol
CAS Registry Number645-65-8
IUPAC Name2-(1H-imidazol-5-yl)acetic acid
Traditional NameIMAC
SMILESOC(=O)CC1=CN=CN1
InChI IdentifierInChI=1S/C5H6N2O2/c8-5(9)1-4-2-6-3-7-4/h2-3H,1H2,(H,6,7)(H,8,9)
InChI KeyPRJKNHOMHKJCEJ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as imidazolyl carboxylic acids and derivatives. These are organic compounds containing a carboxylic acid chain (of at least 2 carbon atoms) linked to an imidazole ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassAzoles
Sub ClassImidazoles
Direct ParentImidazolyl carboxylic acids and derivatives
Alternative Parents
Substituents
  • Imidazolyl carboxylic acid derivative
  • Heteroaromatic compound
  • Azacycle
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginEndogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Mitochondria
Biofluid LocationsNot Available
Tissue LocationsNot Available
Pathways
NameSMPDB LinkKEGG Link
Histidine MetabolismSMP00044 map00340
HistidinemiaSMP00191 Not Available
ApplicationsNot Available
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting PointNot Available
Boiling PointNot Available
SolubilityNot Available
Predicted Properties
PropertyValueSource
Water Solubility53.3 g/LALOGPS
logP-0.5ALOGPS
logP-1.4ChemAxon
logS-0.37ALOGPS
pKa (Strongest Acidic)3.65ChemAxon
pKa (Strongest Basic)6.78ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area65.98 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity30.2 m³·mol⁻¹ChemAxon
Polarizability11.47 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Toxicity Profile
Route of ExposureNot Available
Mechanism of ToxicityNot Available
MetabolismNot Available
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesThis is an endogenously produced metabolite found in the human body. It is used in metabolic reactions, catabolic reactions or waste generation.
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsNot Available
TreatmentNot Available
Concentrations
Not Available
External Links
DrugBank IDNot Available
HMDB IDHMDB0002024
FooDB IDFDB030508
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG ID40666
BioCyc ID4-IMIDAZOLEACETATE
METLIN ID6445
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID86856
ChEBI ID16974
PubChem Compound ID96215
Kegg Compound IDC02835
YMDB IDNot Available
ECMDB IDM2MDB004224
References
Synthesis ReferenceMadsen Christian; Jensen Anders A; Liljefors Tommy; Kristiansen Uffe; Nielsen Birgitte; Hansen Camilla P; Larsen Mogens; Ebert Bjarke; Bang-Andersen Benny; Krogsgaard-Larsen Povl; Frolund Bente 5-Substituted imidazole-4-acetic acid analogues: synthesis, modeling, and pharmacological characterization of a series of novel gamma-aminobutyric acid(C) receptor agonists. Journal of medicinal chemistry (2007), 50(17), 4147-61.
MSDSLink
General References
1. Mung D, Li L: Applying quantitative metabolomics based on chemical isotope labeling LC-MS for detecting potential milk adulterant in human milk. Anal Chim Acta. 2018 Feb 25;1001:78-85. doi: 10.1016/j.aca.2017.11.019. Epub 2017 Nov 14.
2. Madsen Christian; Jensen Anders A; Liljefors Tommy; Kristiansen Uffe; Nielsen Birgitte; Hansen Camilla P; Larsen Mogens; Ebert Bjarke; Bang-Andersen Benny; Krogsgaard-Larsen Povl; Frolund Bente 5-Substituted imidazole-4-acetic acid analogues: synthesis, modeling, and pharmacological characterization of a series of novel gamma-aminobutyric acid(C) receptor agonists. Journal of medicinal chemistry (2007), 50(17), 4147-61.
3. Khandelwal JK, Prell GD, Morrishow AM, Green JP: Presence and measurement of imidazoleacetic acid, a gamma-aminobutyric acid agonist, in rat brain and human cerebrospinal fluid. J Neurochem. 1989 Apr;52(4):1107-13.
4. Tsuruta Y, Tomida H, Kohashi K, Ohkura Y: Simultaneous determination of imidazoleacetic acid and N tau- and N pi-methylimidazoleacetic acids in human urine by high-performance liquid chromatography with fluorescence detection. J Chromatogr. 1987 Apr 24;416(1):63-9.
5. Khandelwal JK, Hough LB, Pazhenchevsky B, Morrishow AM, Green JP: Presence and measurement of methylimidazoleacetic acids in brain and body fluids. J Biol Chem. 1982 Nov 10;257(21):12815-9.
6. Sondergaard I: Quantitative determination of 1,4-methyl-imidazoleacetic acid in urine by high performance liquid chromatography. Allergy. 1982 Nov;37(8):581-6.
7. Imamura I, Watanabe T, Hase Y, Sakamoto Y, Fukuda Y, Yamamoto H, Tsuruhara T, Wada H: Histamine metabolism in patients with histidinemia: determination of urinary levels of histamine, N tau-methylhistamine, imidazole acetic acid, and its conjugate(s). J Biochem. 1984 Dec;96(6):1925-9.
8. Thiele I, Swainston N, Fleming RM, Hoppe A, Sahoo S, Aurich MK, Haraldsdottir H, Mo ML, Rolfsson O, Stobbe MD, Thorleifsson SG, Agren R, Bolling C, Bordel S, Chavali AK, Dobson P, Dunn WB, Endler L, Hala D, Hucka M, Hull D, Jameson D, Jamshidi N, Jonsson JJ, Juty N, Keating S, Nookaew I, Le Novere N, Malys N, Mazein A, Papin JA, Price ND, Selkov E Sr, Sigurdsson MI, Simeonidis E, Sonnenschein N, Smallbone K, Sorokin A, van Beek JH, Weichart D, Goryanin I, Nielsen J, Westerhoff HV, Kell DB, Mendes P, Palsson BO: A community-driven global reconstruction of human metabolism. Nat Biotechnol. 2013 May;31(5):419-25. doi: 10.1038/nbt.2488. Epub 2013 Mar 3.
9. Elshenawy S, Pinney SE, Stuart T, Doulias PT, Zura G, Parry S, Elovitz MA, Bennett MJ, Bansal A, Strauss JF 3rd, Ischiropoulos H, Simmons RA: The Metabolomic Signature of the Placenta in Spontaneous Preterm Birth. Int J Mol Sci. 2020 Feb 4;21(3). pii: ijms21031043. doi: 10.3390/ijms21031043.
10. https://www.ncbi.nlm.nih.gov/pubmed/?term=22770225