Hmdb loader
Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 04:04:44 UTC
Update Date2021-09-26 23:00:31 UTC
HMDB IDHMDB0249563
Secondary Accession NumbersNone
Metabolite Identification
Common NameCalpeptin
Description2-{[(benzyloxy)(hydroxy)methylidene]amino}-4-methyl-N-(1-oxohexan-2-yl)pentanimidic acid belongs to the class of organic compounds known as leucine and derivatives. Leucine and derivatives are compounds containing leucine or a derivative thereof resulting from reaction of leucine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom. Based on a literature review very few articles have been published on 2-{[(benzyloxy)(hydroxy)methylidene]amino}-4-methyl-N-(1-oxohexan-2-yl)pentanimidic acid. This compound has been identified in human blood as reported by (PMID: 31557052 ). Calpeptin is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Calpeptin 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-{[(benzyloxy)(hydroxy)methylidene]amino}-4-methyl-N-(1-oxohexan-2-yl)pentanimidateGenerator
Chemical FormulaC20H30N2O4
Average Molecular Weight362.47
Monoisotopic Molecular Weight362.220557454
IUPAC Namebenzyl N-{3-methyl-1-[(1-oxohexan-2-yl)carbamoyl]butyl}carbamate
Traditional Namebenzyl N-{3-methyl-1-[(1-oxohexan-2-yl)carbamoyl]butyl}carbamate
CAS Registry NumberNot Available
SMILES
CCCCC(NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)C=O
InChI Identifier
InChI=1S/C20H30N2O4/c1-4-5-11-17(13-23)21-19(24)18(12-15(2)3)22-20(25)26-14-16-9-7-6-8-10-16/h6-10,13,15,17-18H,4-5,11-12,14H2,1-3H3,(H,21,24)(H,22,25)
InChI KeyPGGUOGKHUUUWAF-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as leucine and derivatives. Leucine and derivatives are compounds containing leucine or a derivative thereof resulting from reaction of leucine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentLeucine and derivatives
Alternative Parents
Substituents
  • Leucine or derivatives
  • Alpha-amino acid amide
  • Benzyloxycarbonyl
  • Monocyclic benzene moiety
  • Fatty amide
  • Fatty acyl
  • Benzenoid
  • N-acyl-amine
  • Carbamic acid ester
  • Carboxamide group
  • Secondary carboxylic acid amide
  • Carbonic acid derivative
  • Aldehyde
  • Organonitrogen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Carbonyl group
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • 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
logP2.7ALOGPS
logP3.55ChemAxon
logS-4.5ALOGPS
pKa (Strongest Acidic)12.92ChemAxon
pKa (Strongest Basic)-3.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area84.5 ŲChemAxon
Rotatable Bond Count12ChemAxon
Refractivity99.95 m³·mol⁻¹ChemAxon
Polarizability40.6 ųChemAxon
Number of Rings1ChemAxon
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]+191.86930932474
DeepCCS[M-H]-189.31930932474
DeepCCS[M-2H]-223.5530932474
DeepCCS[M+Na]+199.69830932474
AllCCS[M+H]+192.132859911
AllCCS[M+H-H2O]+189.732859911
AllCCS[M+NH4]+194.332859911
AllCCS[M+Na]+194.932859911
AllCCS[M-H]-186.032859911
AllCCS[M+Na-2H]-187.032859911
AllCCS[M+HCOO]-188.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
CalpeptinCCCCC(NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)C=O3318.9Standard polar33892256
CalpeptinCCCCC(NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)C=O2136.7Standard non polar33892256
CalpeptinCCCCC(NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)C=O2612.0Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Calpeptin,1TMS,isomer #1CCCCC(=CO[Si](C)(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C12810.6Semi standard non polar33892256
Calpeptin,1TMS,isomer #1CCCCC(=CO[Si](C)(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C12599.2Standard non polar33892256
Calpeptin,1TMS,isomer #1CCCCC(=CO[Si](C)(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C13616.6Standard polar33892256
Calpeptin,1TMS,isomer #2CCCCC(C=O)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C2613.4Semi standard non polar33892256
Calpeptin,1TMS,isomer #2CCCCC(C=O)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C2575.2Standard non polar33892256
Calpeptin,1TMS,isomer #2CCCCC(C=O)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C3436.4Standard polar33892256
Calpeptin,1TMS,isomer #3CCCCC(C=O)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C2596.6Semi standard non polar33892256
Calpeptin,1TMS,isomer #3CCCCC(C=O)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C2589.7Standard non polar33892256
Calpeptin,1TMS,isomer #3CCCCC(C=O)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C3439.4Standard polar33892256
Calpeptin,2TMS,isomer #1CCCCC(=CO[Si](C)(C)C)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C2729.9Semi standard non polar33892256
Calpeptin,2TMS,isomer #1CCCCC(=CO[Si](C)(C)C)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C2597.2Standard non polar33892256
Calpeptin,2TMS,isomer #1CCCCC(=CO[Si](C)(C)C)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C3376.0Standard polar33892256
Calpeptin,2TMS,isomer #2CCCCC(=CO[Si](C)(C)C)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C2760.4Semi standard non polar33892256
Calpeptin,2TMS,isomer #2CCCCC(=CO[Si](C)(C)C)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C2633.1Standard non polar33892256
Calpeptin,2TMS,isomer #2CCCCC(=CO[Si](C)(C)C)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C3446.7Standard polar33892256
Calpeptin,2TMS,isomer #3CCCCC(C=O)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C)[Si](C)(C)C2588.2Semi standard non polar33892256
Calpeptin,2TMS,isomer #3CCCCC(C=O)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C)[Si](C)(C)C2643.5Standard non polar33892256
Calpeptin,2TMS,isomer #3CCCCC(C=O)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C)[Si](C)(C)C3219.4Standard polar33892256
Calpeptin,3TMS,isomer #1CCCCC(=CO[Si](C)(C)C)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C)[Si](C)(C)C2705.5Semi standard non polar33892256
Calpeptin,3TMS,isomer #1CCCCC(=CO[Si](C)(C)C)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C)[Si](C)(C)C2623.0Standard non polar33892256
Calpeptin,3TMS,isomer #1CCCCC(=CO[Si](C)(C)C)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C)[Si](C)(C)C3209.9Standard polar33892256
Calpeptin,1TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C13051.2Semi standard non polar33892256
Calpeptin,1TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C12773.7Standard non polar33892256
Calpeptin,1TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)NC(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C13711.2Standard polar33892256
Calpeptin,1TBDMS,isomer #2CCCCC(C=O)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C2860.5Semi standard non polar33892256
Calpeptin,1TBDMS,isomer #2CCCCC(C=O)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C2757.2Standard non polar33892256
Calpeptin,1TBDMS,isomer #2CCCCC(C=O)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3483.5Standard polar33892256
Calpeptin,1TBDMS,isomer #3CCCCC(C=O)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C2865.5Semi standard non polar33892256
Calpeptin,1TBDMS,isomer #3CCCCC(C=O)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C2767.0Standard non polar33892256
Calpeptin,1TBDMS,isomer #3CCCCC(C=O)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3476.3Standard polar33892256
Calpeptin,2TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3182.6Semi standard non polar33892256
Calpeptin,2TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C2892.7Standard non polar33892256
Calpeptin,2TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)NC(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3512.7Standard polar33892256
Calpeptin,2TBDMS,isomer #2CCCCC(=CO[Si](C)(C)C(C)(C)C)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3233.7Semi standard non polar33892256
Calpeptin,2TBDMS,isomer #2CCCCC(=CO[Si](C)(C)C(C)(C)C)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C2950.5Standard non polar33892256
Calpeptin,2TBDMS,isomer #2CCCCC(=CO[Si](C)(C)C(C)(C)C)NC(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3587.9Standard polar33892256
Calpeptin,2TBDMS,isomer #3CCCCC(C=O)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3127.6Semi standard non polar33892256
Calpeptin,2TBDMS,isomer #3CCCCC(C=O)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C2995.6Standard non polar33892256
Calpeptin,2TBDMS,isomer #3CCCCC(C=O)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3354.6Standard polar33892256
Calpeptin,3TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3416.7Semi standard non polar33892256
Calpeptin,3TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3084.7Standard non polar33892256
Calpeptin,3TBDMS,isomer #1CCCCC(=CO[Si](C)(C)C(C)(C)C)N(C(=O)C(CC(C)C)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C3416.5Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Calpeptin GC-MS (Non-derivatized) - 70eV, Positivesplash10-006x-9151000000-0cbfa80f3d124aa86dd32021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Calpeptin 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 - Calpeptin 10V, Positive-QTOFsplash10-006t-2394000000-a9f6c415d25ddc9ebaa32021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Calpeptin 20V, Positive-QTOFsplash10-01vp-9741000000-5b4d0f80d302392bad332021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Calpeptin 40V, Positive-QTOFsplash10-0006-9100000000-5d9df0f28980ae3606742021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Calpeptin 10V, Negative-QTOFsplash10-0pbi-0930000000-081cbbe257b3fc65909a2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Calpeptin 20V, Negative-QTOFsplash10-06r6-5920000000-a8d85cda4296dba7e8e82021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Calpeptin 40V, Negative-QTOFsplash10-056r-7900000000-e6d0f21ef994e106b05c2021-10-12Wishart 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 ID2436
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound2532
PDB IDNot Available
ChEBI ID93910
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 ]