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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 15:47:11 UTC
Update Date2021-09-26 23:11:03 UTC
HMDB IDHMDB0255871
Secondary Accession NumbersNone
Metabolite Identification
Common Name3,3'-Dimethylbenzidine
Description3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diamine, also known as 3,3'-dimethyl-4,4'-diaminobiphenyl or O-tolidine, belongs to the class of organic compounds known as 3,3'-disubstituted benzidines. These are organic compounds containing a benzidine skeleton, which is substituted only at the 3- and 3'-positions. Based on a literature review very few articles have been published on 3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diamine. This compound has been identified in human blood as reported by (PMID: 31557052 ). 3,3'-dimethylbenzidine is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 3,3'-Dimethylbenzidine 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
3,3'-Dimethyl-4,4'-diaminobiphenylKegg
O-TolidineKegg
2-TolidineMeSH
2-Tolidine dihydrochlorideMeSH
2-Tolidine dihydrofluorideMeSH
2-Tolidine hexahydrofluorideMeSH
2-Tolidine perchlorateMeSH
2-Tolidine perchlorate (1-)MeSH
2-Tolidine tetrahydrofluorideMeSH
3,3'-DimethylbenzidineMeSH
Tolidine blueMeSH
Chemical FormulaC14H16N2
Average Molecular Weight212.296
Monoisotopic Molecular Weight212.131348523
IUPAC Name3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diamine
Traditional Name3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diamine
CAS Registry NumberNot Available
SMILES
CC1=CC(=CC=C1N)C1=CC=C(N)C(C)=C1
InChI Identifier
InChI=1S/C14H16N2/c1-9-7-11(3-5-13(9)15)12-4-6-14(16)10(2)8-12/h3-8H,15-16H2,1-2H3
InChI KeyNUIURNJTPRWVAP-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 3,3'-disubstituted benzidines. These are organic compounds containing a benzidine skeleton, which is substituted only at the 3- and 3'-positions.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassBiphenyls and derivatives
Direct Parent3,3'-disubstituted benzidines
Alternative Parents
Substituents
  • 3,3'-disubstituted benzidine
  • Aminotoluene
  • Aniline or substituted anilines
  • Toluene
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Primary amine
  • Organonitrogen compound
  • Amine
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic 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
logP2.44ALOGPS
logP2.99ChemAxon
logS-3.5ALOGPS
pKa (Strongest Basic)4.58ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area52.04 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity70.68 m³·mol⁻¹ChemAxon
Polarizability25.21 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+156.85330932474
DeepCCS[M-H]-154.46230932474
DeepCCS[M-2H]-187.37530932474
DeepCCS[M+Na]+162.91330932474
AllCCS[M+H]+148.232859911
AllCCS[M+H-H2O]+144.032859911
AllCCS[M+NH4]+152.232859911
AllCCS[M+Na]+153.332859911
AllCCS[M-H]-153.632859911
AllCCS[M+Na-2H]-153.732859911
AllCCS[M+HCOO]-153.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
3,3'-DimethylbenzidineCC1=CC(=CC=C1N)C1=CC=C(N)C(C)=C13240.8Standard polar33892256
3,3'-DimethylbenzidineCC1=CC(=CC=C1N)C1=CC=C(N)C(C)=C12215.6Standard non polar33892256
3,3'-DimethylbenzidineCC1=CC(=CC=C1N)C1=CC=C(N)C(C)=C12313.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
3,3'-Dimethylbenzidine,1TMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C)C(C)=C2)=CC=C1N2474.6Semi standard non polar33892256
3,3'-Dimethylbenzidine,1TMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C)C(C)=C2)=CC=C1N2442.0Standard non polar33892256
3,3'-Dimethylbenzidine,1TMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C)C(C)=C2)=CC=C1N2963.4Standard polar33892256
3,3'-Dimethylbenzidine,2TMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C2556.9Semi standard non polar33892256
3,3'-Dimethylbenzidine,2TMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C2537.9Standard non polar33892256
3,3'-Dimethylbenzidine,2TMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C2628.8Standard polar33892256
3,3'-Dimethylbenzidine,2TMS,isomer #2CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N2474.1Semi standard non polar33892256
3,3'-Dimethylbenzidine,2TMS,isomer #2CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N2485.1Standard non polar33892256
3,3'-Dimethylbenzidine,2TMS,isomer #2CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N2856.2Standard polar33892256
3,3'-Dimethylbenzidine,3TMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C2544.7Semi standard non polar33892256
3,3'-Dimethylbenzidine,3TMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C2591.5Standard non polar33892256
3,3'-Dimethylbenzidine,3TMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C2568.7Standard polar33892256
3,3'-Dimethylbenzidine,4TMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N([Si](C)(C)C)[Si](C)(C)C2569.4Semi standard non polar33892256
3,3'-Dimethylbenzidine,4TMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N([Si](C)(C)C)[Si](C)(C)C2704.7Standard non polar33892256
3,3'-Dimethylbenzidine,4TMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C(C)=C2)=CC=C1N([Si](C)(C)C)[Si](C)(C)C2476.8Standard polar33892256
3,3'-Dimethylbenzidine,1TBDMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N2761.8Semi standard non polar33892256
3,3'-Dimethylbenzidine,1TBDMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N2682.0Standard non polar33892256
3,3'-Dimethylbenzidine,1TBDMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N3048.1Standard polar33892256
3,3'-Dimethylbenzidine,2TBDMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C(C)(C)C3098.2Semi standard non polar33892256
3,3'-Dimethylbenzidine,2TBDMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C(C)(C)C3018.5Standard non polar33892256
3,3'-Dimethylbenzidine,2TBDMS,isomer #1CC1=CC(C2=CC=C(N[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C(C)(C)C2855.3Standard polar33892256
3,3'-Dimethylbenzidine,2TBDMS,isomer #2CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N2954.0Semi standard non polar33892256
3,3'-Dimethylbenzidine,2TBDMS,isomer #2CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N2926.6Standard non polar33892256
3,3'-Dimethylbenzidine,2TBDMS,isomer #2CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N2989.5Standard polar33892256
3,3'-Dimethylbenzidine,3TBDMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C(C)(C)C3259.5Semi standard non polar33892256
3,3'-Dimethylbenzidine,3TBDMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C(C)(C)C3266.1Standard non polar33892256
3,3'-Dimethylbenzidine,3TBDMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N[Si](C)(C)C(C)(C)C2892.9Standard polar33892256
3,3'-Dimethylbenzidine,4TBDMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3482.7Semi standard non polar33892256
3,3'-Dimethylbenzidine,4TBDMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3535.1Standard non polar33892256
3,3'-Dimethylbenzidine,4TBDMS,isomer #1CC1=CC(C2=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C(C)=C2)=CC=C1N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2872.2Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 3,3'-Dimethylbenzidine GC-MS (Non-derivatized) - 70eV, Positivesplash10-03di-2790000000-fd7cfac347210206ffed2021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 3,3'-Dimethylbenzidine 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 - 3,3'-Dimethylbenzidine 50V, Positive-QTOFsplash10-001i-0900000000-36b5f21038f913d978912021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 30V, Positive-QTOFsplash10-03ea-0950000000-f950501bc39d72fddee92021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 40V, Positive-QTOFsplash10-001i-0900000000-10cfdfff3f1e0bfd084e2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 30V, Positive-QTOFsplash10-03ea-0950000000-452cec65443da2c5d4202021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 40V, Positive-QTOFsplash10-001i-0900000000-64bbbdbdf004b06bceb02021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 20V, Positive-QTOFsplash10-03di-0390000000-eeb5b464aafb68b4abca2021-09-20HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 10V, Positive-QTOFsplash10-03di-0090000000-9c82589c4808203331272021-09-20HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 10V, Positive-QTOFsplash10-03dj-0690000000-128797423919dbbdd80f2016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 20V, Positive-QTOFsplash10-03dj-0970000000-4caa9bfeefa11e50880b2016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 40V, Positive-QTOFsplash10-014i-2900000000-78f1cab0c542f6c333592016-08-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 10V, Negative-QTOFsplash10-03di-0090000000-4eba96dea15385a141d52016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 20V, Negative-QTOFsplash10-03di-0190000000-dca4b4b20f95ce6f9bc42016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 3,3'-Dimethylbenzidine 40V, Negative-QTOFsplash10-03dm-3930000000-661894eecbaa246cc2982016-08-03Wishart 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 ID8106
KEGG Compound IDC14443
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound8413
PDB IDNot Available
ChEBI IDNot Available
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 ]