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Record Information
Version3.6
Creation Date2012-09-06 15:16:52 UTC
Update Date2017-03-02 21:33:57 UTC
HMDB IDHMDB15449
Secondary Accession NumbersNone
Metabolite Identification
Common NameIohexol
DescriptionIohexol is only found in individuals that have used or taken this drug. It is an effective non-ionic, water-soluble contrast agent which is used in myelography, arthrography, nephroangiography, arteriography, and other radiographic procedures. Its low systemic toxicity is the combined result of low chemotoxicity and low osmolality. [PubChem]Organic iodine compounds block x-rays as they pass through the body, thereby allowing body structures containing iodine to be delineated in contrast to those structures that do not contain iodine. The degree of opacity produced by these compounds is directly proportional to the total amount (concentration and volume) of the iodinated contrast agent in the path of the x-rays. After intrathecal administration into the subarachnoid space, diffusion of iohexol in the CSF allows the visualization of the subarachnoid spaces of the head and spinal canal. After intravascular administration, iohexol makes opaque those vessels in its path of flow, allowing visualization of the internal structures until significant hemodilution occurs.
Structure
Thumb
Synonyms
ValueSource
IohexolumChEBI
N,N'-bis(2,3-dihydroxypropyl)-5-(N-(2,3-dihydroxypropyl)acetamido)-2,4,6-triiodoisophthalamideChEBI
Compound 545MeSH
Iohexol 350MeSH
OmnipaqueMeSH
ExypaqueMeSH
NycodenzMeSH
Chemical FormulaC19H26I3N3O9
Average Molecular Weight821.1379
Monoisotopic Molecular Weight820.880309705
IUPAC NameN1,N3-bis(2,3-dihydroxypropyl)-5-[N-(2,3-dihydroxypropyl)acetamido]-2,4,6-triiodobenzene-1,3-dicarboxamide
Traditional Nameiohexol
CAS Registry Number66108-95-0
SMILES
CC(=O)N(CC(O)CO)C1=C(I)C(C(=O)NCC(O)CO)=C(I)C(C(=O)NCC(O)CO)=C1I
InChI Identifier
InChI=1S/C19H26I3N3O9/c1-8(29)25(4-11(32)7-28)17-15(21)12(18(33)23-2-9(30)5-26)14(20)13(16(17)22)19(34)24-3-10(31)6-27/h9-11,26-28,30-32H,2-7H2,1H3,(H,23,33)(H,24,34)
InChI KeyNTHXOOBQLCIOLC-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as o-haloacetanilides. These are organic compounds containing an acetamide group conjugated to a phenyl group, which is in turn ortho-substituted with a halogen atom.
KingdomChemical entities
Super ClassOrganic compounds
ClassBenzenoids
Sub ClassBenzene and substituted derivatives
Direct ParentO-haloacetanilides
Alternative Parents
Substituents
  • O-haloacetanilide
  • P-haloacetanilide
  • Halobenzene
  • Iodobenzene
  • Aryl halide
  • Aryl iodide
  • Acetamide
  • Tertiary carboxylic acid amide
  • Carboxamide group
  • Secondary alcohol
  • Carboximidic acid
  • Carboximidic acid derivative
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Carboxylic acid derivative
  • Alcohol
  • Organoiodide
  • Organohalogen compound
  • Organonitrogen compound
  • Organooxygen compound
  • Primary alcohol
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Carbonyl group
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic compounds
External Descriptors
Ontology
StatusExpected but not Quantified
Origin
  • Drug
Biofunction
  • Contrast Agents
  • Contrast Media
Application
  • Pharmaceutical
Cellular locationsNot Available
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point174 - 180 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility7.96e-01 g/LNot Available
LogP-3.05HANSCH,C & LEO,AJ (1985)
Predicted Properties
PropertyValueSource
Water Solubility0.8 mg/mLALOGPS
logP-2.8ALOGPS
logP-2ChemAxon
logS-3ALOGPS
pKa (Strongest Acidic)11.73ChemAxon
pKa (Strongest Basic)-3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count9ChemAxon
Hydrogen Donor Count8ChemAxon
Polar Surface Area199.89 Å2ChemAxon
Rotatable Bond Count12ChemAxon
Refractivity148.84 m3·mol-1ChemAxon
Polarizability60.37 Å3ChemAxon
Number of Rings1ChemAxon
Bioavailability0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, NegativeNot Available
Biological Properties
Cellular LocationsNot Available
Biofluid Locations
  • Blood
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB01362
  • Not Applicable
details
UrineExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB01362
  • Not Applicable
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB01362
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID3599
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkIohexol
NuGOwiki LinkHMDB15449
Metagene LinkHMDB15449
METLIN IDNot Available
PubChem Compound3730
PDB IDNot Available
ChEBI ID31709
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Shaw DD, Potts DG: Toxicology of iohexol. Invest Radiol. 1985 Jan-Feb;20(1 Suppl):S10-3. [3882609 ]
  2. Kawada TK: Iohexol and iopamidol: second-generation nonionic radiographic contrast media. Drug Intell Clin Pharm. 1985 Jul-Aug;19(7-8):525-9. [3896713 ]