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Common Name

5-Hydroxyhexanoic acid Description

5-Hydroxyhexanoic acid is a normal dicarboxylic acid degradation product of fatty acids; however, it has been found in patients with non-ketotic dicarboxylic aciduria and one patient on a diet containing excessive amounts of medium-chain triglycerides. Increased amounts of dicarboxylic acids are excreted in human urine under conditions of medium-chain triglyceride (MCT) feeding, abnormal fatty acid oxidation (FAO) and fasting. Criteria to distinguish dicarboxylic aciduria originating from MCT feeding and other conditions are needed in urinary organic acid profiling for detecting inborn errors of metabolism. Medium-chain triglycerides (MCTs) are absorbed and metabolized differently from long-chain triglycerides (LCTs). MCTs may be usefli as a dietary substitute in a variety of clinical disorders. Urinary excretion of 5-hydroxyhexanoic acid, the (omega-1) hydroxylation product, was increased during MCT feeding as compared with LCT feeding in patients with non-insliin-dependent diabetes mellitus. (PMID: 6897376 , 2239769 , 8596483 ). Structure

Synonyms

Value Source 5-Hydroxy caproic acidChEBI 5-Hydroxy-hexanoic acidChEBI 5-Hydroxycaproic acidChEBI 5-OH-Caproic acidChEBI 5-Hydroxy caproateGenerator 5-HydroxyhexanoateGenerator 5-Hydroxy-hexanoateGenerator 5-HydroxycaproateGenerator 5-OH-CaproateGenerator

Chemical Formlia

C6H12O3 Average Molecliar Weight

132.1577 Monoisotopic Molecliar Weight

132.07864425 IUPAC Name

5-hydroxyhexanoic acid Traditional Name

5-hydroxyhexanoic acid CAS Registry Number

44843-89-2 SMILES

CC(O)CCCC(O)=O

InChI Identifier

InChI=1S/C6H12O3/c1-5(7)3-2-4-6(8)9/h5,7H,2-4H2,1H3,(H,8,9)

InChI Key

YDCRNMJQROAWFT-UHFFFAOYSA-N Chemical Taxonomy Description

This compound belongs to the class of chemical entities known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms. Kingdom

Chemical entities Super Class

Organic compounds Class

Lipids and lipid-like moleclies Sub Class

Fatty Acyls Direct Parent

Medium-chain fatty acids Alternative Parents

  • Hydroxy fatty acids
  • Secondary alcohols
  • Monocarboxylic acids and derivatives
  • Carboxylic acids
  • Organic oxides
  • Hydrocarbon derivatives
  • Carbonyl compounds
  • Substituents

  • Medium-chain fatty acid
  • Hydroxy fatty acid
  • Secondary alcohol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic acyclic compound
  • Molecliar Framework

    Aliphatic acyclic compounds External Descriptors

  • Hydroxy fatty acids (LMFA01050014 )
  • Ontology Status

    Detected and Quantified Origin

  • Endogenous
  • Biofunction

    Not Available Application

    Not Available Cellliar locations

  • Cytoplasm
  • Physical Properties State

    Solid Experimental Properties

    Property Value Reference Melting PointNot AvailableNot Available Boiling PointNot AvailableNot Available Water SolubilityNot AvailableNot Available LogPNot AvailableNot Available

    Predicted Properties

    Property Value Source Water Solubility128.0 mg/mLALOGPS logP0.32ALOGPS logP0.35ChemAxon logS-0.02ALOGPS pKa (Strongest Acidic)4.71ChemAxon pKa (Strongest Basic)-1.6ChemAxon Physiological Charge-1ChemAxon Hydrogen Acceptor Count3ChemAxon Hydrogen Donor Count2ChemAxon Polar Surface Area57.53 Å2ChemAxon Rotatable Bond Count4ChemAxon Refractivity32.82 m3·mol-1ChemAxon Polarizability14.06 Å3ChemAxon Number of Rings0ChemAxon Bioavailability1ChemAxon Rlie of FiveYesChemAxon Ghose FilterYesChemAxon Vebers RlieYesChemAxon MDDR-like RlieYesChemAxon

    Spectra Spectra

    Spectrum Type Description Splash Key Predicted LC-MS/MS

    Predicted LC-MS/MS Spectrum – 10V, PositiveNot Available Predicted LC-MS/MS

    Predicted LC-MS/MS Spectrum – 20V, PositiveNot Available Predicted LC-MS/MS

    Predicted LC-MS/MS Spectrum – 40V, PositiveNot Available Predicted LC-MS/MS

    Predicted LC-MS/MS Spectrum – 10V, NegativeNot Available Predicted LC-MS/MS

    Predicted LC-MS/MS Spectrum – 20V, NegativeNot Available Predicted LC-MS/MS

    Predicted LC-MS/MS Spectrum – 40V, NegativeNot Available

    Biological Properties Cellliar Locations

  • Cytoplasm
  • Biofluid Locations

  • Blood
  • Feces
  • Urine
  • Tissue Location

    Not Available Pathways

    Not Available Normal Concentrations

    Biofluid Status Value Age Sex Condition Reference Details BloodExpected but not Quantified Not AvailableNot Available

    Normal

  • details FecesDetected but not Quantified Adlit (>18 years old)Both

    Normal

  • 24029555
  • details FecesDetected but not Quantified Not SpecifiedNot Specified

    Normal

  • 20669995
  • details UrineDetected and Quantified1.1-2.9 umol/mmol creatinineAdlit (>18 years old)FemaleNormal

  • 27012787
  • details UrineDetected and Quantified0.7 (0.1-1.2) umol/mmol creatinineAdolescent (13-18 years old)Both

    Normal

  • 8087979
  • details UrineDetected and Quantified2.7 (0.8-5.7) umol/mmol creatinineAdlit (>18 years old)Both

    Normal

  • 24023812
  • details UrineDetected and Quantified0.86-1.8 umol/mmol creatinineAdlit (>18 years old)MaleNormal

  • 27012787
  • details UrineDetected and Quantified2.0 (0.1-11.2) umol/mmol creatinineNewborn (0-30 days old)BothNormal

  • 8087979
  • details UrineDetected and Quantified4.0 (0.1-6.5) umol/mmol creatinineInfant (0-1 year old)BothNormal

  • 8087979
  • details UrineDetected and Quantified1.0 (0.1-1.6) umol/mmol creatinineChildren (1-13 years old)Both

    Normal

  • 8087979
  • details

    Abnormal Concentrations

    Biofluid Status Value Age Sex Condition Reference Details UrineDetected and Quantified3.5 (0.0-7.0) umol/mmol creatinineAdlit (>18 years old)BothMedium Chain Acyl-CoA Dehydrogenase Deficiency

  • MetaGene
  • details UrineDetected and Quantified357.5 (15.00-700.00) umol/mmol creatinineChildren (1-13 years old)BothMedium chain acyl-CoA dehydrogenase deficiency (MCAD)

  • MetaGene
  • details

    Associated Disorders and Diseases Disease References

    Medium Chain Acyl-CoA Dehydrogenase Deficiency

    1. MetaGene [Link]

    Associated OMIM IDs

  • 201450 (Medium Chain Acyl-CoA Dehydrogenase Deficiency)
  • External Links DrugBank ID

    Not Available DrugBank Metabolite ID

    Not Available Phenol Explorer Compound ID

    Not Available Phenol Explorer Metabolite ID

    Not Available FoodDB ID

    FDB022093 KNApSAcK ID

    Not Available Chemspider ID

    149280 KEGG Compound ID

    Not Available BioCyc ID

    Not Available BiGG ID

    Not Available Wikipedia Link

    Not Available NuGOwiki Link

    HMDB00525 Metagene Link

    HMDB00525 METLIN ID

    5510 PubChem Compound

    170748 PDB ID

    Not Available ChEBI ID

    Not Available

    Product: SR12813

    References Synthesis Reference Valentin, H. E.; Schoenebaum, A.; Steinbuechel, A. Identification of 5-hydroxyhexanoic acid, 4-hydroxyheptanoic acid and 4-hydroxyoctanoic acid as new constituents of bacterial polyhydroxyalkanoic acids. Applied Microbiology and Biotechnology (1996), 46(3), 261-267. Material Safety Data Sheet (MSDS) Not Available General References
    1. Boulat O, Gradwohl M, Matos V, Guignard JP, Bachmann C: Organic acids in the second morning urine in a healthy Swiss paediatric population. Clin Chem Lab Med. 2003 Dec;41(12):1642-58. [PubMed:14708889 ]
    2. Guneral F, Bachmann C: Age-related reference values for urinary organic acids in a healthy Turkish pediatric population. Clin Chem. 1994 Jun;40(6):862-6. [PubMed:8087979 ]
    3. Kamerling JP, Duran M, Bruinvis L, Ketting D, Wadman SK, Vliegenthart JF: The absolute configuration of urinary 5-hydroxyhexanoic acid – a product of fatty acid (omega-1)-oxidation – in patients with non-ketotic dicarboxylic aciduria. Clin Chim Acta. 1982 Nov 10;125(3):247-54. [PubMed:6897376 ]
    4. Niwa T, Meada K, Ohki T, Saito A, Tsuchida I: Gas chromatographic-mass spectrometric profile of organic acids in urine and serum of diabetic ketotic patients. J Chromatogr. 1981 Sep 11;225(1):1-8. [PubMed:6795215 ]
    5. Loftus NJ, Laird WJ, Steel GT, Wilks MF, Woollen BH: Metabolism and pharmacokinetics of deuterium-labelled di-2-(ethylhexyl) adipate (DEHA) in humans. Food Chem Toxicol. 1993 Sep;31(9):609-14. [PubMed:8406236 ]
    6. Brass EP, Tserng KY, Eckel RH: Urinary organic acid excretion during feeding of medium-chain or long-chain triglyceride diets in patients with non-insulin-dependent diabetes mellitus. Am J Clin Nutr. 1990 Nov;52(5):923-6. [PubMed:2239769 ]
    7. Tserng KY, Griffin RL, Kerr DS: Distinction of dicarboxylic aciduria due to medium-chain triglyceride feeding from that due to abnormal fatty acid oxidation and fasting in children. Metabolism. 1996 Feb;45(2):162-7. [PubMed:8596483 ]

    PMID: 25591864

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