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Record Information
StatusExpected but not Quantified
Creation Date2006-08-14 00:36:18 UTC
Update Date2017-12-20 20:32:50 UTC
Secondary Accession Numbers
  • HMDB04692
Metabolite Identification
Common Name12(R)-HPETE
Description12(R)-HPETE is a hydroperoxyeicosatetraenoic acid eicosanoid derived from arachidonic acid. The epidermal lipoxygenases 12R-LOX and eLOX3 act in sequence to convert arachidonic acid via 12(R)-HPETE to 12(R)-HETE and the corresponding epoxyalcohol, 8(R)-hydroxy-11(R),12(R)-epoxyeicosatrienoic acid. The epidermal lipoxygenases 12R-LOX and eLOX3 are the gene products of ALOX12B and ALOXE3. Mutations in ALOXE3 or ALOX12B have been found in families with autosomal-recessive congenital ichthyosis (ARCI). ARCI is a clinically and genetically heterogeneous group of severe hereditary keratinization disorders characterized by intense scaling of the whole integument, and differences in color and shape, often associated with erythema. Mutations in ALOXE3 and ALOX12B on chromosome 17p13, which code for two different epidermal lipoxygenases, were found in patients with ichthyosiform erythroderma. Genetic studies indicated that 12R-lipoxygenase (12R-LOX) or epidermal lipoxygenase-3 (eLOX3) was mutated in six families affected by non-bullous congenital ichthyosiform erythroderma (NCIE), one of the main clinical forms of ichthyosis. (PMID: 16116617, 15629692).
(5Z,8Z,10E,14Z)-(12R)-12-Hydroperoxyeicosa-5,8,10,14-tetraenoic acidChEBI
(5Z,8Z,10E,14Z)-(12R)-12-Hydroperoxyicosa-5,8,10,14-tetraenoic acidChEBI
12R-Hydroperoxy-5Z,8Z,10E,14Z-eicosatetraenoic acidHMDB
12R-Hydroperoxyeicosatetraenoic acidHMDB
Chemical FormulaC20H32O4
Average Molecular Weight336.4657
Monoisotopic Molecular Weight336.230059512
IUPAC Name(5Z,8Z,10E,12R,14Z)-12-hydroperoxyicosa-5,8,10,14-tetraenoic acid
Traditional Name12R-HpETE
CAS Registry Number126873-49-2
InChI Identifier
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as hydroperoxyeicosatetraenoic acids. These are eicosanoic acids with an attached hydroperoxyl group and four CC double bonds.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassEicosanoids
Direct ParentHydroperoxyeicosatetraenoic acids
Alternative Parents
  • Hydroperoxyeicosatetraenoic acid
  • Long-chain fatty acid
  • Hydroperoxy fatty acid
  • Fatty acid
  • Unsaturated fatty acid
  • Allylic hydroperoxide
  • Hydroperoxide
  • Carboxylic acid derivative
  • Alkyl hydroperoxide
  • Carboxylic acid
  • Peroxol
  • Monocarboxylic acid or derivatives
  • Carbonyl group
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors

Naturally occurring process:

  Biological process:

    Biochemical pathway:

    Cellular process:


Biological location:

  Cell and elements:




Industrial application:

Biological role:

Physical Properties
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility0.0017 g/LALOGPS
pKa (Strongest Acidic)4.89ChemAxon
pKa (Strongest Basic)-4.2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area66.76 ŲChemAxon
Rotatable Bond Count15ChemAxon
Refractivity102.82 m³·mol⁻¹ChemAxon
Polarizability39.88 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0nml-8491000000-0127633b6ae0909f1672View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-05dr-9334000000-7ccf269dc3d82ad47d27View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-0119000000-19caf32dc0daf75104b3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00ou-5975000000-f4a0ca5c1a3a9fb036e3View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-052f-9640000000-496b0d1583282ff83466View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0119000000-f328ff1db02305a6bcd0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014r-1659000000-87c05812516016895a3bView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9740000000-43688cc7fb27bb45f0c9View in MoNA
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationNot Available
Acetaminophen Action PathwayPw000687Pw000687 greyscalePw000687 simpleNot Available
Acetylsalicylic Acid Action PathwayPw000128Pw000128 greyscalePw000128 simpleNot Available
Antipyrine Action PathwayPw000669Pw000669 greyscalePw000669 simpleNot Available
Antrafenine Action PathwayPw000670Pw000670 greyscalePw000670 simpleNot Available
Arachidonic Acid MetabolismPw000044Pw000044 greyscalePw000044 simpleMap00590
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB023408
KNApSAcK IDNot Available
Chemspider ID7827808
KEGG Compound IDC14812
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound9548885
PDB IDNot Available
ChEBI ID34145
Synthesis ReferencePorter, Ned A.; Dussault, Patrick; Breyer, Robert A.; Kaplan, Jere; Morelli, Joseph. The resolution of racemic hydroperoxides: a chromatography-based separation of perketals derived from arachidonic, linoleic, and oleic acid hydroperoxides. Chemical Research in Toxicology (1990), 3(3), 236-43.
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Eckl KM, Krieg P, Kuster W, Traupe H, Andre F, Wittstruck N, Furstenberger G, Hennies HC: Mutation spectrum and functional analysis of epidermis-type lipoxygenases in patients with autosomal recessive congenital ichthyosis. Hum Mutat. 2005 Oct;26(4):351-61. [PubMed:16116617 ]
  2. Yu Z, Schneider C, Boeglin WE, Brash AR: Mutations associated with a congenital form of ichthyosis (NCIE) inactivate the epidermal lipoxygenases 12R-LOX and eLOX3. Biochim Biophys Acta. 2005 Jan 5;1686(3):238-47. [PubMed:15629692 ]


General function:
Involved in metal ion binding
Specific function:
Converts arachidonic acid to 12R- hydroperoxyeicosatetraenoic acid (12R-HPETE)
Gene Name:
Uniprot ID:
Molecular weight: