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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 12:28:41 UTC
Update Date2022-11-24 00:09:12 UTC
HMDB IDHMDB0253676
Secondary Accession NumbersNone
Metabolite Identification
Common NameIsopropyl methylphosphonate
DescriptionIsopropyl methylphosphonate, also known as IMPA, belongs to the class of organic compounds known as phosphonic acid esters. These are organic compounds containing phosphonic acid ester functional group, with the general structure ROP(=O)OH (R = organyl group). Based on a literature review a significant number of articles have been published on Isopropyl methylphosphonate. This compound has been identified in human blood as reported by (PMID: 31557052 ). Isopropyl methylphosphonate is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically Isopropyl methylphosphonate 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
Isopropyl methylphosphonic acidGenerator
IMPAHMDB
Chemical FormulaC4H11O3P
Average Molecular Weight138.103
Monoisotopic Molecular Weight138.044581212
IUPAC Namemethyl(propan-2-yloxy)phosphinic acid
Traditional Nameisopropyl methylphosphonate
CAS Registry NumberNot Available
SMILES
CC(C)OP(C)(O)=O
InChI Identifier
InChI=1S/C4H11O3P/c1-4(2)7-8(3,5)6/h4H,1-3H3,(H,5,6)
InChI KeyGHZKGHQGPXBWSN-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as phosphonic acid esters. These are organic compounds containing phosphonic acid ester functional group, with the general structure ROP(=O)OH (R = organyl group).
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassOrganic phosphonic acids and derivatives
Sub ClassPhosphonic acid esters
Direct ParentPhosphonic acid esters
Alternative Parents
Substituents
  • Phosphonic acid ester
  • Organophosphonic acid
  • Organic oxygen compound
  • Organopnictogen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organophosphorus compound
  • Organooxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic 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
logP0.02ALOGPS
logP0.1ChemAxon
logS-0.6ALOGPS
pKa (Strongest Acidic)1.96ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area46.53 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity30.83 m³·mol⁻¹ChemAxon
Polarizability12.73 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+129.65530932474
DeepCCS[M-H]-126.89230932474
DeepCCS[M-2H]-163.33230932474
DeepCCS[M+Na]+138.02830932474
AllCCS[M+H]+132.532859911
AllCCS[M+H-H2O]+128.532859911
AllCCS[M+NH4]+136.232859911
AllCCS[M+Na]+137.332859911
AllCCS[M-H]-131.032859911
AllCCS[M+Na-2H]-134.532859911
AllCCS[M+HCOO]-138.332859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Predicted by Siyang on May 30, 20229.2331 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20223.85 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid1120.0 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid340.1 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid102.2 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid202.1 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid65.7 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid308.1 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 Acid336.1 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)96.2 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid703.9 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid280.0 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid776.7 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid239.3 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid231.3 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate400.4 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA336.5 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water65.9 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
ISOPROPYL METHYLPHOSPHONATECC(C)OP(C)(O)=O1675.2Standard polar33892256
ISOPROPYL METHYLPHOSPHONATECC(C)OP(C)(O)=O930.2Standard non polar33892256
ISOPROPYL METHYLPHOSPHONATECC(C)OP(C)(O)=O1008.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
ISOPROPYL METHYLPHOSPHONATE,1TMS,isomer #1CC(C)OP(C)(=O)O[Si](C)(C)C1060.6Semi standard non polar33892256
ISOPROPYL METHYLPHOSPHONATE,1TMS,isomer #1CC(C)OP(C)(=O)O[Si](C)(C)C1080.1Standard non polar33892256
ISOPROPYL METHYLPHOSPHONATE,1TMS,isomer #1CC(C)OP(C)(=O)O[Si](C)(C)C1140.3Standard polar33892256
ISOPROPYL METHYLPHOSPHONATE,1TBDMS,isomer #1CC(C)OP(C)(=O)O[Si](C)(C)C(C)(C)C1309.9Semi standard non polar33892256
ISOPROPYL METHYLPHOSPHONATE,1TBDMS,isomer #1CC(C)OP(C)(=O)O[Si](C)(C)C(C)(C)C1320.8Standard non polar33892256
ISOPROPYL METHYLPHOSPHONATE,1TBDMS,isomer #1CC(C)OP(C)(=O)O[Si](C)(C)C(C)(C)C1297.0Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Isopropyl methylphosphonate GC-MS (Non-derivatized) - 70eV, Positivesplash10-0007-9000000000-53c7e6b21f0a24d883ad2021-09-24Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Isopropyl methylphosphonate 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 - Isopropyl methylphosphonate 10V, Positive-QTOFsplash10-0002-9000000000-2b9e02b0c59bc7d3c8182021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopropyl methylphosphonate 20V, Positive-QTOFsplash10-0002-9000000000-dbd1c7b6b3dee97c0be62021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopropyl methylphosphonate 40V, Positive-QTOFsplash10-0006-9000000000-87ab7ab2bf62f25933e92021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopropyl methylphosphonate 10V, Negative-QTOFsplash10-002u-9800000000-dc453eb414926c94b5e22021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopropyl methylphosphonate 20V, Negative-QTOFsplash10-004i-9000000000-79af203508b97dc1c97b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Isopropyl methylphosphonate 40V, Negative-QTOFsplash10-004i-9000000000-99ff4111de90b07e00fc2021-10-12Wishart 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 ID15003
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound15778
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 ]