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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 22:58:19 UTC
Update Date2021-09-26 23:17:49 UTC
HMDB IDHMDB0259961
Secondary Accession NumbersNone
Metabolite Identification
Common NameZ-Ala-ONp
Description4-nitrophenyl 2-{[(benzyloxy)(hydroxy)methylidene]amino}propanoate belongs to the class of organic compounds known as alpha amino acid esters. These are ester derivatives of alpha amino acids. Based on a literature review very few articles have been published on 4-nitrophenyl 2-{[(benzyloxy)(hydroxy)methylidene]amino}propanoate. This compound has been identified in human blood as reported by (PMID: 31557052 ). Z-ala-onp is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Z-Ala-ONp 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
4-Nitrophenyl 2-{[(benzyloxy)(hydroxy)methylidene]amino}propanoic acidGenerator
N-CBzAla npeMeSH
N-Carbobenzoxy-L-alanine 4-nitrophenyl esterMeSH
N-Carbobenzoxyalanine 4-nitrophenyl ester, (D)-isomerMeSH
Chemical FormulaC17H16N2O6
Average Molecular Weight344.323
Monoisotopic Molecular Weight344.100836243
IUPAC Name4-nitrophenyl 2-{[(benzyloxy)carbonyl]amino}propanoate
Traditional Name4-nitrophenyl 2-{[(benzyloxy)carbonyl]amino}propanoate
CAS Registry NumberNot Available
SMILES
CC(NC(=O)OCC1=CC=CC=C1)C(=O)OC1=CC=C(C=C1)[N+]([O-])=O
InChI Identifier
InChI=1S/C17H16N2O6/c1-12(18-17(21)24-11-13-5-3-2-4-6-13)16(20)25-15-9-7-14(8-10-15)19(22)23/h2-10,12H,11H2,1H3,(H,18,21)
InChI KeySXWWICLSRXPNNW-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as alpha amino acid esters. These are ester derivatives of alpha amino acids.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
Sub ClassAmino acids, peptides, and analogues
Direct ParentAlpha amino acid esters
Alternative Parents
Substituents
  • Alpha-amino acid ester
  • Alanine or derivatives
  • Phenol ester
  • Benzyloxycarbonyl
  • Nitrobenzene
  • Phenoxy compound
  • Nitroaromatic compound
  • Benzenoid
  • Monocyclic benzene moiety
  • Carbamic acid ester
  • Organic nitro compound
  • Carbonic acid derivative
  • C-nitro compound
  • Carboxylic acid ester
  • Organic 1,3-dipolar compound
  • Propargyl-type 1,3-dipolar organic compound
  • Allyl-type 1,3-dipolar organic compound
  • Organic oxoazanium
  • Monocarboxylic acid or derivatives
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Carbonyl group
  • Aromatic homomonocyclic compound
Molecular FrameworkAromatic homomonocyclic 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
logP2.69ALOGPS
logP3.33ChemAxon
logS-4.7ALOGPS
pKa (Strongest Acidic)12.61ChemAxon
pKa (Strongest Basic)-7.4ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area107.77 ŲChemAxon
Rotatable Bond Count8ChemAxon
Refractivity87.04 m³·mol⁻¹ChemAxon
Polarizability34.13 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
AllCCS[M+H]+180.16732859911
AllCCS[M+H-H2O]+177.0932859911
AllCCS[M+Na]+183.82932859911
AllCCS[M+NH4]+183.01332859911
AllCCS[M-H]-180.12232859911
AllCCS[M+Na-2H]-179.60832859911
AllCCS[M+HCOO]-179.1832859911
DeepCCS[M+H]+169.99530932474
DeepCCS[M-H]-167.63730932474
DeepCCS[M-2H]-200.52230932474
DeepCCS[M+Na]+176.08830932474

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Z-Ala-ONpCC(NC(=O)OCC1=CC=CC=C1)C(=O)OC1=CC=C(C=C1)[N+]([O-])=O4011.5Standard polar33892256
Z-Ala-ONpCC(NC(=O)OCC1=CC=CC=C1)C(=O)OC1=CC=C(C=C1)[N+]([O-])=O2790.5Standard non polar33892256
Z-Ala-ONpCC(NC(=O)OCC1=CC=CC=C1)C(=O)OC1=CC=C(C=C1)[N+]([O-])=O2748.8Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Z-Ala-ONp,1TMS,isomer #1CC(C(=O)OC1=CC=C([N+](=O)[O-])C=C1)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C2791.0Semi standard non polar33892256
Z-Ala-ONp,1TMS,isomer #1CC(C(=O)OC1=CC=C([N+](=O)[O-])C=C1)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C2680.1Standard non polar33892256
Z-Ala-ONp,1TMS,isomer #1CC(C(=O)OC1=CC=C([N+](=O)[O-])C=C1)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C3788.6Standard polar33892256
Z-Ala-ONp,1TBDMS,isomer #1CC(C(=O)OC1=CC=C([N+](=O)[O-])C=C1)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3092.2Semi standard non polar33892256
Z-Ala-ONp,1TBDMS,isomer #1CC(C(=O)OC1=CC=C([N+](=O)[O-])C=C1)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C2895.4Standard non polar33892256
Z-Ala-ONp,1TBDMS,isomer #1CC(C(=O)OC1=CC=C([N+](=O)[O-])C=C1)N(C(=O)OCC1=CC=CC=C1)[Si](C)(C)C(C)(C)C3799.1Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Z-Ala-ONp GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-9400000000-49fc66157ed85ae2e9c22021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Z-Ala-ONp GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart 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 ID92642
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound102569
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 ]