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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-07-04 19:04:03 UTC
Update Date2023-02-21 17:30:15 UTC
HMDB IDHMDB0060860
Secondary Accession Numbers
  • HMDB60860
Metabolite Identification
Common NameOR-1855
DescriptionOR-1855, also known as levosimendan or simadax, belongs to the class of organic compounds known as aniline and substituted anilines. These are organic compounds containing an aminobenzene moiety. OR-1855 is a metabolite of levosimendan. OR-1855 is a very strong basic compound (based on its pKa). OR-1855 is a calcium sensitiser used in the management of acutely decompensated congestive heart failure. It is marketed under the trade name Simdax.
Structure
Data?1677000615
Synonyms
ValueSource
LevosimendanHMDB
SimadaxHMDB
DextrosimendanHMDB
((4-(1,4,5,6-Tetrahydro-4-methyl-6-oxo-3-pyridazinyl)phenyl)hydrazono)propanedinitrileHMDB
SimendanHMDB
Chemical FormulaC11H13N3O
Average Molecular Weight203.2404
Monoisotopic Molecular Weight203.105862053
IUPAC Name(5R)-6-(4-aminophenyl)-5-methyl-2,3,4,5-tetrahydropyridazin-3-one
Traditional Name(5R)-6-(4-aminophenyl)-5-methyl-4,5-dihydro-2H-pyridazin-3-one
CAS Registry NumberNot Available
SMILES
C[C@@H]1CC(=O)NN=C1C1=CC=C(N)C=C1
InChI Identifier
InChI=1S/C11H13N3O/c1-7-6-10(15)13-14-11(7)8-2-4-9(12)5-3-8/h2-5,7H,6,12H2,1H3,(H,13,15)/t7-/m1/s1
InChI KeyGDMRFHZLKNYRRO-SSDOTTSWSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as aniline and substituted anilines. These are organic compounds containing an aminobenzene moiety.
KingdomOrganic compounds
Super ClassBenzenoids
ClassBenzene and substituted derivatives
Sub ClassAniline and substituted anilines
Direct ParentAniline and substituted anilines
Alternative Parents
Substituents
  • Aniline or substituted anilines
  • Pyridazinone
  • Pyridazine
  • Amino acid or derivatives
  • Carboxylic acid derivative
  • Organoheterocyclic compound
  • Azacycle
  • Organic nitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Primary amine
  • Organooxygen compound
  • Organonitrogen compound
  • Amine
  • Carbonyl group
  • Organic oxide
  • Hydrocarbon derivative
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
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
Water Solubility0.38 g/LALOGPS
logP1.42ALOGPS
logP0.72ChemAxon
logS-2.7ALOGPS
pKa (Strongest Acidic)11.79ChemAxon
pKa (Strongest Basic)6.02ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area67.48 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity58.91 m³·mol⁻¹ChemAxon
Polarizability21.67 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
DarkChem[M+H]+146.70131661259
DarkChem[M-H]-146.14531661259
DeepCCS[M+H]+148.29430932474
DeepCCS[M-H]-145.89830932474
DeepCCS[M-2H]-179.05830932474
DeepCCS[M+Na]+154.20630932474
AllCCS[M+H]+146.032859911
AllCCS[M+H-H2O]+141.732859911
AllCCS[M+NH4]+150.032859911
AllCCS[M+Na]+151.132859911
AllCCS[M-H]-149.032859911
AllCCS[M+Na-2H]-149.332859911
AllCCS[M+HCOO]-149.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
OR-1855C[C@@H]1CC(=O)NN=C1C1=CC=C(N)C=C13154.4Standard polar33892256
OR-1855C[C@@H]1CC(=O)NN=C1C1=CC=C(N)C=C12134.4Standard non polar33892256
OR-1855C[C@@H]1CC(=O)NN=C1C1=CC=C(N)C=C12256.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
OR-1855,1TMS,isomer #1C[C@@H]1CC(=O)NN=C1C1=CC=C(N[Si](C)(C)C)C=C12345.8Semi standard non polar33892256
OR-1855,1TMS,isomer #1C[C@@H]1CC(=O)NN=C1C1=CC=C(N[Si](C)(C)C)C=C12496.5Standard non polar33892256
OR-1855,1TMS,isomer #1C[C@@H]1CC(=O)NN=C1C1=CC=C(N[Si](C)(C)C)C=C13711.4Standard polar33892256
OR-1855,1TMS,isomer #2C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N)C=C12164.6Semi standard non polar33892256
OR-1855,1TMS,isomer #2C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N)C=C12279.8Standard non polar33892256
OR-1855,1TMS,isomer #2C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N)C=C13467.6Standard polar33892256
OR-1855,2TMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N[Si](C)(C)C)C=C12276.6Semi standard non polar33892256
OR-1855,2TMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N[Si](C)(C)C)C=C12447.6Standard non polar33892256
OR-1855,2TMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N[Si](C)(C)C)C=C13425.2Standard polar33892256
OR-1855,2TMS,isomer #2C[C@@H]1CC(=O)NN=C1C1=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C=C12337.6Semi standard non polar33892256
OR-1855,2TMS,isomer #2C[C@@H]1CC(=O)NN=C1C1=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C=C12482.2Standard non polar33892256
OR-1855,2TMS,isomer #2C[C@@H]1CC(=O)NN=C1C1=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C=C13641.3Standard polar33892256
OR-1855,3TMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C=C12214.5Semi standard non polar33892256
OR-1855,3TMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C=C12487.6Standard non polar33892256
OR-1855,3TMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C)N=C1C1=CC=C(N([Si](C)(C)C)[Si](C)(C)C)C=C13282.7Standard polar33892256
OR-1855,1TBDMS,isomer #1C[C@@H]1CC(=O)NN=C1C1=CC=C(N[Si](C)(C)C(C)(C)C)C=C12519.0Semi standard non polar33892256
OR-1855,1TBDMS,isomer #1C[C@@H]1CC(=O)NN=C1C1=CC=C(N[Si](C)(C)C(C)(C)C)C=C12720.2Standard non polar33892256
OR-1855,1TBDMS,isomer #1C[C@@H]1CC(=O)NN=C1C1=CC=C(N[Si](C)(C)C(C)(C)C)C=C13797.8Standard polar33892256
OR-1855,1TBDMS,isomer #2C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N)C=C12395.6Semi standard non polar33892256
OR-1855,1TBDMS,isomer #2C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N)C=C12500.5Standard non polar33892256
OR-1855,1TBDMS,isomer #2C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N)C=C13549.0Standard polar33892256
OR-1855,2TBDMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N[Si](C)(C)C(C)(C)C)C=C12724.2Semi standard non polar33892256
OR-1855,2TBDMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N[Si](C)(C)C(C)(C)C)C=C12875.7Standard non polar33892256
OR-1855,2TBDMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N[Si](C)(C)C(C)(C)C)C=C13444.5Standard polar33892256
OR-1855,2TBDMS,isomer #2C[C@@H]1CC(=O)NN=C1C1=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C12723.7Semi standard non polar33892256
OR-1855,2TBDMS,isomer #2C[C@@H]1CC(=O)NN=C1C1=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C12921.6Standard non polar33892256
OR-1855,2TBDMS,isomer #2C[C@@H]1CC(=O)NN=C1C1=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C13682.0Standard polar33892256
OR-1855,3TBDMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C12882.0Semi standard non polar33892256
OR-1855,3TBDMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C13118.7Standard non polar33892256
OR-1855,3TBDMS,isomer #1C[C@@H]1CC(=O)N([Si](C)(C)C(C)(C)C)N=C1C1=CC=C(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)C=C13357.5Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - OR-1855 GC-MS (Non-derivatized) - 70eV, Positivesplash10-001j-1900000000-cbf8f6c21b8ef02866fc2017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - OR-1855 GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 10V, Positive-QTOFsplash10-0udr-0980000000-15125578dd25cf6f83842017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 20V, Positive-QTOFsplash10-0f79-0930000000-3d546fc93ad4a3f8c2cf2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 40V, Positive-QTOFsplash10-0udl-6900000000-a52196deb65d3440e4d42017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 10V, Negative-QTOFsplash10-0udi-1290000000-d60ae1506582dccdff122017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 20V, Negative-QTOFsplash10-0006-9800000000-7ad082318fbf1e097cdb2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 40V, Negative-QTOFsplash10-0006-8900000000-a70dbcb2ba444bc2c2892017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 10V, Positive-QTOFsplash10-0udi-0090000000-06478ae430e4aa33dcdd2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 20V, Positive-QTOFsplash10-0udi-0790000000-e51db331699fbca73c1d2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 40V, Positive-QTOFsplash10-0ued-0900000000-b981b2806892e8cd50f62021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 10V, Negative-QTOFsplash10-0udi-0090000000-d75b674d338b1244911a2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 20V, Negative-QTOFsplash10-0udi-1490000000-2cca8d49ad084299f2622021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - OR-1855 40V, Negative-QTOFsplash10-001l-2900000000-f42259860e9ca44e4cf52021-10-12Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M-H]-)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-04FELIX labView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Blood
  • Urine
Tissue Locations
  • Kidney
  • Liver
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
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 LinkNot Available
METLIN IDNot Available
PubChem Compound10465484
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 ReferencesNot Available