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Record Information
Version2.0
Created at2024-09-11 19:23:06 UTC
Updated at2024-09-11 19:23:06 UTC
NP-MRD IDNP0339037
Secondary Accession NumbersNone
Natural Product Identification
Common Name12-Oxo-20-hydroxy-leukotriene B4
Description12-Oxo-20-hydroxy-leukotriene B4, also known as OX20HLTB4, belongs to the class of organic compounds known as leukotrienes. These are eicosanoids containing a hydroxyl group attached to the aliphatic chain of an arachidonic acid. Leukotrienes have four double bonds, three (and only three) of which are conjugated. Thus, 12-oxo-20-hydroxy-leukotriene B4 is considered to be an eicosanoid lipid molecule. The regulation of leukotriene production occurs at various levels, including expression of 5-LO, translocation of 5-LO to the perinuclear region and phosphorylation to either enhance or inhibit the activity of 5-LO. Prostaglandins were originally shown to be synthesized in the prostate gland, thromboxanes from platelets (thrombocytes) and leukotrienes from leukocytes, hence the derivation of their names. 12-Oxo-20-hydroxy-leukotriene B4 is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. LTB4 is the major metabolite in neutrophil polymorphonuclear leukocytes. The PGs and TXs are collectively identified as prostanoids. All eicosanoids function locally at the site of synthesis, through receptor-mediated G-protein linked signaling pathways.
Structure
Thumb
Synonyms
ValueSource
(5S,20)-Dihydroxy-12-keto-(6Z,8E,10E,14Z)-eicosatetraenoateHMDB
(5S,20)-Dihydroxy-12-keto-(6Z,8E,10E,14Z)-eicosatetraenoic acidHMDB
(5S,20)-Dihydroxy-12-oxo-(6Z,8E,10E,14Z)-eicosatetraenoateHMDB
(5S,20)-Dihydroxy-12-oxo-(6Z,8E,10E,14Z)-eicosatetraenoic acidHMDB
12-Keto-20-hydroxy-leukotriene b(,4)HMDB
Ox20hLTB4HMDB
Chemical FormulaC20H30O5
Average Mass350.4492 Da
Monoisotopic Mass350.20932 Da
IUPAC Name(5R,6Z,8E,10E,14Z)-5,20-dihydroxy-12-oxoicosa-6,8,10,14-tetraenoic acid
Traditional Name(5R,6Z,8E,10E,14Z)-5,20-dihydroxy-12-oxoicosa-6,8,10,14-tetraenoic acid
CAS Registry NumberNot Available
SMILES
OCCCCC\C=C/CC(=O)\C=C\C=C\C=C/[C@H](O)CCCC(O)=O
InChI Identifier
InChI=1S/C20H30O5/c21-17-10-6-2-1-3-7-12-18(22)13-8-4-5-9-14-19(23)15-11-16-20(24)25/h3-5,7-9,13-14,19,21,23H,1-2,6,10-12,15-17H2,(H,24,25)/b5-4+,7-3-,13-8+,14-9-/t19-/m0/s1
InChI KeyCZWPUWRHQBAXJS-PABROBRYSA-N
Experimental Spectra
Not Available
Predicted Spectra
Not Available
Chemical Shift Submissions
Not Available
Species
Species of OriginNot Available
Chemical Taxonomy
Description Belongs to the class of organic compounds known as leukotrienes. These are eicosanoids containing a hydroxyl group attached to the aliphatic chain of an arachidonic acid. Leukotrienes have four double bonds, three (and only three) of which are conjugated.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassEicosanoids
Direct ParentLeukotrienes
Alternative Parents
Substituents
  • Leukotriene
  • Hydroxyeicosatetraenoic acid
  • Long-chain fatty acid
  • Hydroxy fatty acid
  • Keto fatty acid
  • Fatty acid
  • Unsaturated fatty acid
  • Acryloyl-group
  • Enone
  • Alpha,beta-unsaturated ketone
  • Secondary alcohol
  • Ketone
  • Carboxylic acid
  • Carboxylic acid derivative
  • Monocarboxylic acid or derivatives
  • Alcohol
  • Primary alcohol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Carbonyl group
  • Organooxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP3.48ALOGPS
logP3.1ChemAxon
logS-4.1ALOGPS
pKa (Strongest Acidic)4.65ChemAxon
pKa (Strongest Basic)-1.4ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area94.83 ŲChemAxon
Rotatable Bond Count15ChemAxon
Refractivity104.02 m³·mol⁻¹ChemAxon
Polarizability39.84 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0012552
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB029119
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound53481459
PDB IDNot Available
ChEBI IDNot Available
Good Scents IDNot Available
References
General References