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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 11:52:18 UTC
Update Date2021-09-26 23:06:39 UTC
HMDB IDHMDB0253433
Secondary Accession NumbersNone
Metabolite Identification
Common NameIminostilbene
Description5H-dibenzo[b,f]azepine, also known as dibenzazepine or 2,2'-iminostilbene, belongs to the class of organic compounds known as dibenzazepines. Dibenzazepines are compounds with two benzene rings connected by an azepine ring. Azepine is an unsaturated seven-member heterocycle with one nitrogen atom replacing a carbon atom. 5H-dibenzo[b,f]azepine is an extremely weak basic (essentially neutral) compound (based on its pKa). A mancude organic heterotricyclic parent that consists of a seven-membered nitrogen hetrocycle fused with two benzene rings. This compound has been identified in human blood as reported by (PMID: 31557052 ). Iminostilbene is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Iminostilbene is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
2,2'-IminostilbeneChEBI
2,3,6,7-DibenzazepineChEBI
5H-Dibenz[b,F]azepinChEBI
5H-Dibenz[b,F]azepineChEBI
5H-DibenzazepineChEBI
Dibenz(b,F)azepineChEBI
DibenzazepineChEBI
IminostilbeneChEBI
O,O'-iminostilbeneChEBI
GSI XXMeSH
Iminostilbene, 10-(13)C-labeledMeSH
Chemical FormulaC14H11N
Average Molecular Weight193.2438
Monoisotopic Molecular Weight193.089149357
IUPAC Name2-azatricyclo[9.4.0.0³,⁸]pentadeca-1(15),3,5,7,9,11,13-heptaene
Traditional Namedibenzazepine
CAS Registry NumberNot Available
SMILES
N1C2=CC=CC=C2C=CC2=CC=CC=C12
InChI Identifier
InChI=1S/C14H11N/c1-3-7-13-11(5-1)9-10-12-6-2-4-8-14(12)15-13/h1-10,15H
InChI KeyLCGTWRLJTMHIQZ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as dibenzazepines. Dibenzazepines are compounds with two benzene rings connected by an azepine ring. Azepine is an unsaturated seven-member heterocycle with one nitrogen atom replacing a carbon atom.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassBenzazepines
Sub ClassDibenzazepines
Direct ParentDibenzazepines
Alternative Parents
Substituents
  • Dibenzazepine
  • Azepine
  • Benzenoid
  • Azacycle
  • Secondary amine
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP3.99ALOGPS
logP3.78ChemAxon
logS-3.8ALOGPS
pKa (Strongest Acidic)19.47ChemAxon
pKa (Strongest Basic)0.34ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area12.03 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity63.94 m³·mol⁻¹ChemAxon
Polarizability22.02 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M-2H]-169.78830932474
DeepCCS[M+Na]+144.61930932474
AllCCS[M+H]+144.232859911
AllCCS[M+H-H2O]+140.032859911
AllCCS[M+NH4]+148.132859911
AllCCS[M+Na]+149.232859911
AllCCS[M-H]-144.532859911
AllCCS[M+Na-2H]-144.032859911
AllCCS[M+HCOO]-143.632859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Predicted by Siyang on May 30, 202215.0709 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20222.2 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid2391.0 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid505.7 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid173.6 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid295.9 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid175.6 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid671.1 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid784.5 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)158.1 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid1402.3 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid435.4 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1421.7 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid410.5 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid428.5 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate459.9 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA345.0 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water39.8 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
IminostilbeneN1C2=CC=CC=C2C=CC2=CC=CC=C122960.3Standard polar33892256
IminostilbeneN1C2=CC=CC=C2C=CC2=CC=CC=C122001.3Standard non polar33892256
IminostilbeneN1C2=CC=CC=C2C=CC2=CC=CC=C121981.7Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Iminostilbene,1TMS,isomer #1C[Si](C)(C)N1C2=CC=CC=C2C=CC2=CC=CC=C211972.1Semi standard non polar33892256
Iminostilbene,1TMS,isomer #1C[Si](C)(C)N1C2=CC=CC=C2C=CC2=CC=CC=C211979.6Standard non polar33892256
Iminostilbene,1TMS,isomer #1C[Si](C)(C)N1C2=CC=CC=C2C=CC2=CC=CC=C212768.1Standard polar33892256
Iminostilbene,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=CC=C2C=CC2=CC=CC=C212152.7Semi standard non polar33892256
Iminostilbene,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=CC=C2C=CC2=CC=CC=C212155.8Standard non polar33892256
Iminostilbene,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)N1C2=CC=CC=C2C=CC2=CC=CC=C212888.5Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Iminostilbene GC-MS (Non-derivatized) - 70eV, Positivesplash10-00kf-0900000000-43e918b3e0a06e6a02912021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Iminostilbene GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 15V, Positive-QTOFsplash10-0006-0900000000-a18f0df7702c0fe6729e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 55V, Positive-QTOFsplash10-002f-0900000000-d01df6ff87c160d5168e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 20V, Positive-QTOFsplash10-0006-0900000000-f05a64d025d1092e4f8d2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 30V, Positive-QTOFsplash10-0006-0900000000-d2163dab2c0709ef123e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 55V, Positive-QTOFsplash10-004i-0900000000-be1236d41ce9a90039892021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 60V, Positive-QTOFsplash10-0006-0900000000-c2a12148449338f89c452021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 50V, Positive-QTOFsplash10-00mo-0900000000-69ddb5d6b045cc0ea63d2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 40V, Positive-QTOFsplash10-00mo-0900000000-b68027e959e89766a8b52021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 45V, Positive-QTOFsplash10-0006-0900000000-c68be61259460ac660812021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 35V, Positive-QTOFsplash10-0006-0900000000-0a993bca2bd9380ab9992021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 75V, Positive-QTOFsplash10-0006-0900000000-d97fd62305c077d807382021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 30V, Positive-QTOFsplash10-0006-0900000000-323e8f64293c2f2d13362021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 50V, Positive-QTOFsplash10-0f6x-0900000000-028bbcbac571e975ed342021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 90V, Positive-QTOFsplash10-0006-0900000000-cffd6f44ad2048a529252021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 15V, Positive-QTOFsplash10-0006-0900000000-e91903c22a6871481fee2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 55V, Positive-QTOFsplash10-0006-0900000000-dea272b8bf8c618a3fbc2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 45V, Positive-QTOFsplash10-004i-0900000000-471402c894958b791d982021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 20V, Positive-QTOFsplash10-0006-0900000000-5a5cb1276bff52de62af2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - Iminostilbene 10V, Positive-QTOFsplash10-0006-0900000000-95fd97a92e5723971a4f2021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Iminostilbene 10V, Positive-QTOFsplash10-0006-0900000000-384f9f1423189f4f98b12016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Iminostilbene 20V, Positive-QTOFsplash10-0006-0900000000-bce9592fa935a56384432016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Iminostilbene 40V, Positive-QTOFsplash10-0f96-2900000000-11f0e6dbe97bdc881a1d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Iminostilbene 10V, Negative-QTOFsplash10-0006-0900000000-68b877850f1235718e972016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Iminostilbene 20V, Negative-QTOFsplash10-0006-0900000000-93596df472ed5757a8f72016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Iminostilbene 40V, Negative-QTOFsplash10-014l-0900000000-6ad472eecc1e240c87612016-08-03Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkDibenzazepine
METLIN IDNot Available
PubChem Compound9212
PDB IDNot Available
ChEBI ID47802
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]