You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version3.6
Creation Date2005-11-16 15:48:42 UTC
Update Date2016-02-11 01:03:10 UTC
HMDB IDHMDB00665
Secondary Accession NumbersNone
Metabolite Identification
Common NameLeucinic acid
DescriptionLeucinic acid has been isolated from amniotic fluid (PMID: 6467607 ), and have been found in a patient with dihydrolipoyl dehydrogenase deficiency (PMID 6688766 ). Leucinic acid is a bacterial metabolite present in the urine of patients with short bowel syndrome. (PMID 4018104 ).
Structure
Thumb
Synonyms
ValueSource
2-Hydroxyisocaproic acidChEBI
2-Hydroxyisohexanoic acidChEBI
alpha-Hydroxyisocaproic acidChEBI
Leucic acidChEBI
Leucinic acidChEBI
2-HydroxyisocaproateGenerator
2-Hydroxy-4-methylvalerateGenerator
2-HydroxyisohexanoateGenerator
a-HydroxyisocaproateGenerator
a-Hydroxyisocaproic acidGenerator
alpha-HydroxyisocaproateGenerator
α-hydroxyisocaproateGenerator
α-hydroxyisocaproic acidGenerator
LeucateGenerator
LeucinateGenerator
2-Hydroxy-4-methyl-valerateHMDB
2-Hydroxy-4-methyl-valeric acidHMDB
2-Hydroxy-4-methylpentanoateHMDB
2-Hydroxy-4-methylpentanoic acidHMDB
a-Hydroxy-iso-caproateHMDB
a-Hydroxy-iso-caproic acidHMDB
alpha-Hydroxy-iso-caproateHMDB
alpha-Hydroxy-iso-caproic acidHMDB
DL-2-Hydroxy-4-methylpentanoateHMDB
DL-2-Hydroxy-4-methylpentanoic acidHMDB
DL-2-HydroxyisocaproateHMDB
DL-2-Hydroxyisocaproic acidHMDB
DL-a-HydroxyisocaproateHMDB
DL-a-Hydroxyisocaproic acidHMDB
DL-alpha-HydroxyisocaproateHMDB
DL-alpha-Hydroxyisocaproic acidHMDB
DL-LeucateHMDB
DL-Leucic acidHMDB
Chemical FormulaC6H12O3
Average Molecular Weight132.1577
Monoisotopic Molecular Weight132.07864425
IUPAC Name2-hydroxy-4-methylpentanoic acid
Traditional Nameleucate
CAS Registry Number498-36-2
SMILES
CC(C)CC(O)C(O)=O
InChI Identifier
InChI=1S/C6H12O3/c1-4(2)3-5(7)6(8)9/h4-5,7H,3H2,1-2H3,(H,8,9)
InChI KeyInChIKey=LVRFTAZAXQPQHI-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentHydroxy fatty acids
Alternative Parents
Substituents
  • Hydroxy fatty acid
  • Methyl-branched fatty acid
  • Branched fatty acid
  • Hydroxy acid
  • Alpha-hydroxy acid
  • Secondary alcohol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
StatusDetected and Quantified
Origin
  • Endogenous
  • Food
  • Microbial
Biofunction
  • Cell signaling
  • Fuel and energy storage
  • Fuel or energy source
  • Membrane integrity/stability
Application
  • Nutrients
  • Stabilizers
  • Surfactants and Emulsifiers
Cellular locations
  • Extracellular
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility886 mg/mLNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility124.0 mg/mLALOGPS
logP0.5ALOGPS
logP0.78ChemAxon
logS-0.03ALOGPS
pKa (Strongest Acidic)4.26ChemAxon
pKa (Strongest Basic)-3.8ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 Å2ChemAxon
Rotatable Bond Count3ChemAxon
Refractivity32.51 m3·mol-1ChemAxon
Polarizability13.65 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Positive (Annotated)splash10-014r-9000000000-5e0d546d1d0e6bb8c48cView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Positive (Annotated)splash10-014i-9100000000-ed29dea8a5c4015ec5f9View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Positive (Annotated)splash10-0a4i-8900000000-44e1b9618ac09f8f20b8View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-001r-7900000000-7ab0c9dc80e61fa580c9View in MoNA
1D NMR1H NMR SpectrumNot Available
2D NMR[1H,13C] 2D NMR SpectrumNot Available
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biofluid Locations
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
UrineDetected and Quantified0.0 umol/mmol creatinineChildren (1 - 18 years old)Both
Normal
    • BC Children's Hos...
details
UrineDetected and Quantified0-0.39 umol/mmol creatinineAdult (>18 years old)BothNormal
    • Great Plains Labo...
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB022171
KNApSAcK IDNot Available
Chemspider ID83753
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkLeucate
NuGOwiki LinkHMDB00665
Metagene LinkHMDB00665
METLIN ID5635
PubChem Compound92779
PDB IDNot Available
ChEBI ID59783
References
Synthesis ReferenceCamien, Merill N.; Fowler, Audree V.; Dunn, Max S. Production of a-hydroxy fatty acids by two strains of Lactobacillus casei. Archives of Biochemistry and Biophysics (1959), 83 408-18.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Kuhara T, Shinka T, Inoue Y, Matsumoto M, Yoshino M, Sakaguchi Y, Matsumoto I: Studies of urinary organic acid profiles of a patient with dihydrolipoyl dehydrogenase deficiency. Clin Chim Acta. 1983 Sep 30;133(2):133-40. [6688766 ]
  2. Jakobs C, Sweetman L, Nyhan WL: Hydroxy acid metabolites of branched-chain amino acids in amniotic fluid. Clin Chim Acta. 1984 Jul 16;140(2):157-66. [6467607 ]
  3. Spaapen LJ, Ketting D, Wadman SK, Bruinvis L, Duran M: Urinary D-4-hydroxyphenyllactate, D-phenyllactate and D-2-hydroxyisocaproate, abnormalities of bacterial origin. J Inherit Metab Dis. 1987;10(4):383-90. [3126358 ]
  4. Haan E, Brown G, Bankier A, Mitchell D, Hunt S, Blakey J, Barnes G: Severe illness caused by the products of bacterial metabolism in a child with a short gut. Eur J Pediatr. 1985 May;144(1):63-5. [4018104 ]