Common Name4-imidazolone-5-propanoate
Description4-Imidazolone-5-propanoate is a metabolite of histidine metabolism. It is produced from urocanic acid by the enzyme urocanate hydratase [EC:4.2.1.49]. 4-Imidazolone-5-propionic acid can spontaneously decay to 4-oxoglutaramate or formylisoglutamine. It is also converted to N-forminimo-L-glutamate by the enzyme imidazolonepropionase [EC:3.5.2.7].
Structure
Molecular FormulaC6H8N2O3
Average Mass156.13930
Monoisotopic Mass156.05349
IUPAC Name3-(5-oxo-4,5-dihydro-1H-imidazol-4-yl)propanoic acid
Traditional Name3-(5-oxo-1,4-dihydroimidazol-4-yl)propanoic acid
CAS Registry Number17340-16-8
SMILESO=C([O-])CC[c-]1[nH]c[nH+]c1=O
InChI IdentifierInChI=1S/C6H8N2O3/c9-5(10)2-1-4-6(11)8-3-7-4/h3-4H,1-2H2,(H,9,10)(H,7,8,11)
InChI KeyHEXMLHKQVUFYME-UHFFFAOYSA-N
CHEBI IDCHEBI:77893
HMDB IDHMDB0001014
Pathways
NameSMPDB/PathBank
Histidine metabolism
Histidinemia
StateSolid
Water Solubility1.04e+01 g/l
logP-1.13
logS-1.17
pKa (Strongest Acidic)3.51
pKa (Strongest Basic)4.69
Hydrogen Acceptor Count4
Hydrogen Donor Count2
Polar Surface Area78.76 Ų
Rotatable Bond Count3
Physiological Charge-1
Formal Charge0
Refractivity35.22 m³·mol⁻¹
Polarizability14.27

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