Record Information
Version1.0
Creation Date2009-03-06 18:57:55 UTC
Update Date2026-03-31 16:47:11 UTC
Accession NumberCHEM000013
Identification
Common NameDibenzo[a,h]anthracene
ClassSmall Molecule
DescriptionDibenzo(a,h)anthracene is one of over 100 different polycyclic aromatic hydrocarbons (PAHs). PAHs are chemicals that are formed during the incomplete burning organic substances, such as fossil fuels. They are usually found as a mixture containing two or more of these compounds. It is one ingredient of cigarette. (4)
Contaminant Sources
  • Clean Air Act Chemicals
  • HPV EPA Chemicals
  • IARC Carcinogens Group 2A
  • My Exposome Chemicals
  • STOFF IDENT Compounds
  • T3DB toxins
  • Tobacco Smoke Compounds
  • ToxCast & Tox21 Chemicals
Contaminant Type
  • Aromatic Hydrocarbon
  • Cigarette Toxin
  • Food Toxin
  • Industrial By-product/Pollutant
  • Industrial/Workplace Toxin
  • Natural Compound
  • Organic Compound
  • Pollutant
  • Polycyclic Aromatic Hydrocarbon
Chemical Structure
Thumb
Synonyms
ValueSource
1,2:5,6-DibenzanthraceneChEBI
DBAChEBI
1,2,5,6-DibenzanthraceneMeSH
1,2,5,6-Dibenzanthracene, ion(1+)MeSH
1,2,5,6-Dibenzanthracene, ion(1-)MeSH
Dibenz(a,H)anthraceneMeSH
dibenzo(a,H)AnthraceneMeSH
Chemical FormulaC22H14
Average Molecular Mass278.347 g/mol
Monoisotopic Mass278.110 g/mol
CAS Registry Number53-70-3
IUPAC Namepentacyclo[12.8.0.0^{3,12}.0^{4,9}.0^{15,20}]docosa-1,3,5,7,9,11,13,15,17,19,21-undecaene
Traditional Namepentacyclo[12.8.0.0^{3,12}.0^{4,9}.0^{15,20}]docosa-1,3,5,7,9,11,13,15,17,19,21-undecaene
SMILESC1=CC=C2C(C=CC3=CC4=C(C=CC5=CC=CC=C45)C=C23)=C1
InChI IdentifierInChI=1S/C22H14/c1-3-7-19-15(5-1)9-11-17-14-22-18(13-21(17)19)12-10-16-6-2-4-8-20(16)22/h1-14H
InChI KeyLHRCREOYAASXPZ-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as phenanthrenes and derivatives. These are polycyclic compounds containing a phenanthrene moiety, which is a tricyclic aromatic compound with three non-linearly fused benzene.
KingdomOrganic compounds
Super ClassBenzenoids
ClassPhenanthrenes and derivatives
Sub ClassNot Available
Direct ParentPhenanthrenes and derivatives
Alternative Parents
Substituents
  • Phenanthrene
  • Anthracene
  • Aromatic hydrocarbon
  • Polycyclic hydrocarbon
  • Unsaturated hydrocarbon
  • Hydrocarbon
  • Aromatic homopolycyclic compound
Molecular FrameworkAromatic homopolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
ApplicationsNot Available
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceColorless solid.
Experimental Properties
PropertyValue
Melting Point269.5°C
Boiling PointNot Available
Solubility2.49e-06 mg/mL at 25 °C [HASSETT,JJ et al. (1980)]
Predicted Properties
PropertyValueSource
Water Solubility5.7e-07 g/LALOGPS
logP6.93ALOGPS
logP5.93ChemAxon
logS-8.7ALOGPS
Physiological Charge0ChemAxon
Hydrogen Acceptor Count0ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area0 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity91.86 m³·mol⁻¹ChemAxon
Polarizability32.87 ųChemAxon
Number of Rings5ChemAxon
Bioavailability1ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-004i-0090000000-81693ebd93637cbc7080Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-0090000000-3115bf003b9cee611609Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-0090000000-749c760f7a5a9c1aeeb0Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0fb9-0090000000-e058e0550d22fa7479e5Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0090000000-773f4e4ef9823ddfdea3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-0090000000-773f4e4ef9823ddfdea3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-004i-0090000000-910a1e5be083829e5535Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-0090000000-3ca26a652eff5433f50aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-0090000000-3ca26a652eff5433f50aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-004i-0090000000-27ab7759f478445cae3fSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0090000000-f1f000ca3cb2151d263dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-0090000000-f1f000ca3cb2151d263dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0fb9-0090000000-46f199df2f90ecf72a7dSpectrum
MSMass Spectrum (Electron Ionization)splash10-004i-0190000000-84d24efcba4eb6b8512eSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
Toxicity Profile
Route of ExposureOral (4) ; inhalation (4)
Mechanism of ToxicityThe ability of PAH's to bind to blood proteins such as albumin allows them to be transported throughout the body. Many PAH's induce the expression of cytochrome P450 enzymes, especially CYP1A1, CYP1A2, and CYP1B1, by binding to the aryl hydrocarbon receptor or glycine N-methyltransferase protein. These enzymes metabolize PAH's into their toxic intermediates. The reactive metabolites of PAHs (epoxide intermediates, dihydrodiols, phenols, quinones, and their various combinations) covalently bind to DNA and other cellular macromolecules, initiating mutagenesis and carcinogenesis. The main carcinogenic metabolite of benzo(a)pyrene is the diol-epoxide trans-9,10-epoxy-7,8-dihydrodiol. (4, 5, 2, 3)
MetabolismPAH metabolism occurs in all tissues, usually by cytochrome P-450 and its associated enzymes. PAHs are metabolized into reactive intermediates, which include epoxide intermediates, dihydrodiols, phenols, quinones, and their various combinations. The phenols, quinones, and dihydrodiols can all be conjugated to glucuronides and sulfate esters; the quinones also form glutathione conjugates. (4)
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)2A, probably carcinogenic to humans. (6)
Uses/SourcesPAHs are released into the environment via the combustion of fossil fuels, coke oven emissions and vehicle exhausts, as well as naturally from forest fires and volcanic eruptions. PAHs from these sources may contaminate nearly water systems. They are also found in coal tar and charbroiled food. (4)
Minimum Risk LevelNot Available
Health EffectsPAHs are carcinogens and have been associated with the increased risk of skin, respiratory tract, bladder, stomach, and kidney cancers. They may also cause reproductive effects and depress the immune system. (4)
SymptomsAcute exposure to PAHs causes irritation and inflammation of the skin and lung tissue. (1)
TreatmentThere is no known antidote for PAHs. Exposure is usually handled with symptomatic treatment. (4)
Concentrations
Not Available
DrugBank IDNot Available
HMDB IDHMDB0251159
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDC00017098
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID5678
ChEBI ID35299
PubChem Compound IDNot Available
Kegg Compound IDC14325
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
MSDSNot Available
General ReferencesNot Available