Record Information
Version1.0
Creation Date2016-09-30 23:19:33 UTC
Update Date2020-06-04 18:59:19 UTC
BMDB IDBMDB0006006
Secondary Accession Numbers
  • BMDB06006
Metabolite Identification
Common NameIsobutanol
DescriptionIsobutanol, also known as isobutyl alcohol or 2-methylpropanol, belongs to the class of organic compounds known as primary alcohols. Primary alcohols are compounds comprising the primary alcohol functional group, with the general structure RCOH (R=alkyl, aryl). Thus, isobutanol is considered to be a fatty alcohol lipid molecule. Isobutanol exists as a solid, very hydrophobic, practically insoluble (in water), and relatively neutral molecule. Isobutanol exists in all eukaryotes, ranging from yeast to humans.
Structure
Thumb
Synonyms
ValueSource
1-HydroxymethylpropaneChEBI
2-Methyl-1-propanolChEBI
2-MethylpropanolChEBI
I-butanolChEBI
I-butyl alcoholChEBI
IBAChEBI
Iso-butyl alcoholChEBI
Iso-C4H9OHChEBI
Isobutyl alcoholChEBI
IsobutylalkoholChEBI
IsopropylcarbinolChEBI
2-Methyl propanolHMDB
2-Methyl-1-propanyl alcoholHMDB
2-Methylpropan-1-olHMDB
2-MethylpropanoIHMDB
2-Methylpropanol-1HMDB
2-Methylpropyl alcoholHMDB
Alcool isobutyliqueHMDB
Isopropyl carbitolHMDB
Methyl-2 propanol-1HMDB
Isobutyl alcohol, aluminum saltMeSH, HMDB
Isobutyl alcohol, sodium saltMeSH, HMDB
Isobutyl alcohol, titanium (+4) saltMeSH, HMDB
IsobutanolMeSH
Chemical FormulaC4H10O
Average Molecular Weight74.1216
Monoisotopic Molecular Weight74.073164942
IUPAC Name2-methylpropan-1-ol
Traditional Nameisobutanol
CAS Registry Number78-83-1
SMILES
CC(C)CO
InChI Identifier
InChI=1S/C4H10O/c1-4(2)3-5/h4-5H,3H2,1-2H3
InChI KeyZXEKIIBDNHEJCQ-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as primary alcohols. Primary alcohols are compounds comprising the primary alcohol functional group, with the general structure RCOH (R=alkyl, aryl).
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassAlcohols and polyols
Direct ParentPrimary alcohols
Alternative Parents
Substituents
  • Hydrocarbon derivative
  • Primary alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
  • Exogenous
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateLiquid
Experimental Properties
PropertyValueReference
Melting Point-108 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility85 mg/mL at 25 °CNot Available
LogP0.76HANSCH,C ET AL. (1995)
Predicted Properties
PropertyValueSource
logP0.6ALOGPS
logP0.73ChemAxon
logS0.28ALOGPS
pKa (Strongest Acidic)17.33ChemAxon
pKa (Strongest Basic)-1.8ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area20.23 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity22.01 m³·mol⁻¹ChemAxon
Polarizability9.07 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Milk
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
MilkDetected and Quantified0.000695 +/- 0.000417 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified0.00111 +/- 0.00167 uMNot SpecifiedNot Specified
Normal
details
MilkDetected and Quantified0.00764 +/- 0.0124 uMNot SpecifiedNot Specified
Normal
details
Abnormal Concentrations
Not Available
HMDB IDHMDB0006006
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB003274
KNApSAcK IDC00050470
Chemspider ID6312
KEGG Compound IDC14710
BioCyc IDISOBUTANOL
BiGG IDNot Available
Wikipedia LinkIsobutanol
METLIN IDNot Available
PubChem Compound6560
PDB IDNot Available
ChEBI ID46645
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Toso B, Procida G, Stefanon B: Determination of volatile compounds in cows' milk using headspace GC-MS. J Dairy Res. 2002 Nov;69(4):569-77. [PubMed:12463694 ]