Record Information
Version1.0
Creation Date2016-09-30 22:48:34 UTC
Update Date2020-05-11 20:55:49 UTC
BMDB IDBMDB0001881
Secondary Accession Numbers
  • BMDB01881
Metabolite Identification
Common NamePropylene glycol
DescriptionPropylene glycol, also known as 1,2-propanediol or methyl glycol, belongs to the class of organic compounds known as 1,2-diols. These are polyols containing an alcohol group at two adjacent positions. Propylene glycol is an extremely weak basic (essentially neutral) compound (based on its pKa). Propylene glycol exists in all living species, ranging from bacteria to humans. Propylene glycol is a potentially toxic compound.
Structure
Thumb
Synonyms
ValueSource
1,2-DihydroxypropaneChEBI
1,2-PropanediolChEBI
1,2-PropylenglykolChEBI
2-HydroxypropanolChEBI
alpha-PropyleneglycolChEBI
CH3CH(OH)CH2OHChEBI
HOCH2CH(OH)CH3ChEBI
HOCH2CH(OH)MeChEBI
Isopropylene glycolChEBI
MeCH(OH)CH2OHChEBI
Methyl glycolChEBI
Methylethyl glycolChEBI
Methylethylene glycolChEBI
Monopropylene glycolChEBI
PPDChEBI
a-PropyleneglycolGenerator
Α-propyleneglycolGenerator
(RS)-1,2-PropanediolHMDB
1,2-(RS)-PropanediolHMDB
1,2-Propylene glycolHMDB
2,3-PropanediolHMDB
a-Propylene glycolHMDB
Aliphatic alcoholHMDB
alpha-Propylene glycolHMDB
Chilisa feHMDB
DL-1,2-PropanediolHMDB
DL-Propylene glycolHMDB
DowfrostHMDB
GlycolHMDB
Ilexan pHMDB
Inhibited 1,2-propylene glycolHMDB
ProlugenHMDB
Propane-1,2-diolHMDB
PropanediolHMDB
Propylene glycol uspHMDB
PropylenglycolHMDB
Sentry propylene glycolHMDB
SirleneHMDB
Solar winter banHMDB
Solargard pHMDB
Trimethyl glycolHMDB
Ucar 35HMDB
Propan-1,2-diolHMDB
Monohydrate, propylene glycolHMDB
Propylene glycol, (R)-isomerHMDB
Propylene glycol, (S)-isomerHMDB
1,2 PropanediolHMDB
Glycol, propyleneHMDB
Propylene glycol, (+-)-isomerHMDB
Propylene glycol monohydrateHMDB
Propylene glycol sodium saltHMDB
Chemical FormulaC3H8O2
Average Molecular Weight76.0944
Monoisotopic Molecular Weight76.0524295
IUPAC Namepropane-1,2-diol
Traditional Name1,2-propanediol
CAS Registry Number57-55-6
SMILES
CC(O)CO
InChI Identifier
InChI=1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3
InChI KeyDNIAPMSPPWPWGF-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as 1,2-diols. These are polyols containing an alcohol group at two adjacent positions.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassAlcohols and polyols
Direct Parent1,2-diols
Alternative Parents
Substituents
  • Secondary alcohol
  • 1,2-diol
  • Hydrocarbon derivative
  • Primary alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
Origin
  • Exogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locations
  • Cytoplasm
Physical Properties
StateLiquid
Experimental Properties
PropertyValueReference
Melting Point-60 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility1000 mg/mL at 20 °CNot Available
LogP-0.92HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP-1.1ALOGPS
logP-0.79ChemAxon
logS1.1ALOGPS
pKa (Strongest Acidic)14.47ChemAxon
pKa (Strongest Basic)-2.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area40.46 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity18.97 m³·mol⁻¹ChemAxon
Polarizability8.01 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies) (Non-derivatized)splash10-014j-0900000000-d90655d5a614c4ddf998View in MoNA
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-014i-1900000000-ab4a1ff05d1275711170View in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0002-9000000000-a18bede40461dace657bView in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0002-9000000000-6d2345a66e2cf8d2d379View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Non-derivatized)splash10-014j-0900000000-d90655d5a614c4ddf998View in MoNA
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-014i-1900000000-ab4a1ff05d1275711170View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-055g-9000000000-594a84f802409d0a8265View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-0kp0-9520000000-ffe4848ba88742d1a4d6View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-0a7i-9000000000-6c96c59f8ba2e0e5353eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-005d-9000000000-ae07e4049d24341335ecView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-00aj-9000000000-f455f8f0f79f9970711aView in MoNA
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI RMU-7M) , Positivesplash10-0002-9000000000-c5bf57086deb14e12495View in MoNA
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI M-80B) , Positivesplash10-0002-9000000000-6d2345a66e2cf8d2d379View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-004i-9000000000-0a1a58ae50ca7bfbc92fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a6r-9000000000-0c246d88e88be8375dd1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052f-9000000000-5e6c0456bbcc20afb607View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-9000000000-5bf5d9d3c7cf604af9a3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-056r-9000000000-3499fb432cd119926640View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-36c6bc6082b188beb665View in MoNA
MSMass Spectrum (Electron Ionization)splash10-0002-9000000000-cbc512db1a4c5510015eView in MoNA
1D NMR1H NMR Spectrum (1D, 500 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, 90 MHz, CDCl3, experimental)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, 15.09 MHz, CDCl3, experimental)Not AvailableView in JSpectraViewer
1D NMR1H NMR Spectrum (1D, D2O, experimental)Not AvailableView in JSpectraViewer
1D NMR13C NMR Spectrum (1D, D2O, experimental)Not AvailableView in JSpectraViewer
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 500 MHz, H2O, experimental)Not AvailableView in JSpectraViewer
Biological Properties
Cellular Locations
  • Cytoplasm
Biospecimen Locations
  • Epidermis
  • Intestine
  • Liver
  • Neuron
  • Platelet
  • Semen
  • Skeletal Muscle
  • Testis
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
EpidermisExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
IntestineExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
LiverDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
NeuronExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
PlateletExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
SemenDetected but not QuantifiedNot QuantifiedNot SpecifiedNot Specified
Normal
details
Skeletal MuscleExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
TestisExpected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal
  • Not Applicable
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0001881
DrugBank IDDB01839
Phenol Explorer Compound IDNot Available
FooDB IDFDB008274
KNApSAcK IDC00007410
Chemspider ID13835224
KEGG Compound IDC00583
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkPropylene_glycol
METLIN ID3220
PubChem Compound1030
PDB IDNot Available
ChEBI ID16997
References
Synthesis ReferenceTuck, Michael William Marshall. Preparation of propylene glycol by hydrogenation of glycerol. PCT Int. Appl. (2008), 20pp.
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available