Record Information
Creation date2011-09-21 01:55:33 UTC
Update date2015-07-21 06:59:43 UTC
Primary IDFDB029423
Secondary Accession NumbersNot Available
Chemical Information
FooDB NamePC(o-18:0/24:0)
DescriptionPC(o-18:0/24:0) is a phosphatidylcholine (PC or GPCho). It is a glycerophospholipid in which a phosphorylcholine moiety occupies a glycerol substitution site. As is the case with diacylglycerols, glycerophosphocholines can have many different combinations of fatty acids of varying lengths and saturation attached at the C-1 and C-2 positions. Fatty acids containing 16, 18 and 20 carbons are the most common. PC(o-18:0/24:0), in particular, consists of one chain of Stearyl alcohol at the C-1 position and one chain of lignoceric acid at the C-2 position. The Stearyl alcohol moiety is derived from beef fat, fish oil, while the lignoceric acid moiety is derived from groundnut oil. Phospholipids, are ubiquitous in nature and are key components of the lipid bilayer of cells, as well as being involved in metabolism and signaling. While most phospholipids have a saturated fatty acid on C-1 and an unsaturated fatty acid on C-2 of the glycerol backbone, the fatty acid distribution at the C-1 and C-2 positions of glycerol within phospholipids is continually in flux, owing to phospholipid degradation and the continuous phospholipid remodeling that occurs while these molecules are in membranes. PCs can be synthesized via three different routes. In one route, choline is activated first by phosphorylation and then by coupling to CDP prior to attachment to phosphatidic acid. PCs can also synthesized by the addition of choline to CDP-activated 1,2-diacylglycerol. A third route to PC synthesis involves the conversion of either PS or PE to PC. [HMDB]
CAS NumberNot Available
Phosphatidylcholine(18:0/24:0)Lipid Annotator, HMDB
PC(18:0/24:0)Lipid Annotator, HMDB
GPCho(42:0)Lipid Annotator, HMDB
LecithinLipid Annotator, HMDB
Phosphatidylcholine(42:0)Lipid Annotator, HMDB
PC(42:0)Lipid Annotator, HMDB
PC(o-18:0/24:0)Lipid Annotator
GPCho(18:0/24:0)Lipid Annotator, HMDB
1-octadecanyl-2-tetracosanoyl-sn-glycero-3-phosphocholineLipid Annotator, HMDB
1-Stearyl-2-lignoceroyl-sn-glycero-3-phosphocholineLipid Annotator, HMDB
Predicted Properties
Water Solubility1.7e-05 g/LALOGPS
pKa (Strongest Acidic)1.86ChemAxon
pKa (Strongest Basic)-4.1ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area94.12 ŲChemAxon
Rotatable Bond Count50ChemAxon
Refractivity262.12 m³·mol⁻¹ChemAxon
Polarizability112.14 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC50H102NO7P
IUPAC nametrimethyl(2-{[(2R)-3-(octadecyloxy)-2-(tetracosanoyloxy)propyl phosphono]oxy}ethyl)azanium
InChI IdentifierInChI=1S/C50H102NO7P/c1-6-8-10-12-14-16-18-20-22-24-25-26-27-28-29-31-33-35-37-39-41-43-50(52)58-49(48-57-59(53,54)56-46-44-51(3,4)5)47-55-45-42-40-38-36-34-32-30-23-21-19-17-15-13-11-9-7-2/h49H,6-48H2,1-5H3/t49-/m1/s1
Average Molecular Weight860.3211
Monoisotopic Molecular Weight859.739391135
Description belongs to the class of organic compounds known as 1-alkyl,2-acylglycero-3-phosphocholines. These are glycerophosphocholines that carry exactly one acyl chain attached to the glycerol moiety through an ester linkage at the O2-position, and one alkyl chain attached through an ether linkage at the O1-position.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
Sub ClassGlycerophosphocholines
Direct Parent1-alkyl,2-acylglycero-3-phosphocholines
Alternative Parents
  • 1-alkyl,2-acylglycero-3-phosphocholine
  • Phosphocholine
  • Fatty acid ester
  • Dialkyl phosphate
  • Glycerol ether
  • Organic phosphoric acid derivative
  • Phosphoric acid ester
  • Fatty acyl
  • Alkyl phosphate
  • Tetraalkylammonium salt
  • Quaternary ammonium salt
  • Carboxylic acid ester
  • Carboxylic acid derivative
  • Dialkyl ether
  • Ether
  • Monocarboxylic acid or derivatives
  • Organonitrogen compound
  • Organopnictogen compound
  • Organic oxygen compound
  • Carbonyl group
  • Amine
  • Organic nitrogen compound
  • Organooxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organic salt
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Physiological effect

Organoleptic effect:


Route of exposure:


Biological location:


Naturally occurring process:


Industrial application:

Biological role:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateSolid
Physical DescriptionNot Available
Mass CompositionNot Available
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
SpectraNot Available
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound ID53481717
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
NameGene NameUniProt ID
Phospholipase D2PLD2O14939
Phospholipase D3PLD3Q8IV08
Phospholipase D4PLD4Q96BZ4
Lecithin retinol acyltransferaseLRATO95237
Phosphatidylcholine:ceramide cholinephosphotransferase 2SGMS2Q8NHU3
Phosphatidylcholine:ceramide cholinephosphotransferase 1SGMS1Q86VZ5
Phosphatidylcholine-sterol acyltransferaseLCATP04180
Lysophospholipid acyltransferase 5LPCAT3Q6P1A2
Lysophosphatidylcholine acyltransferase 2LPCAT2Q7L5N7
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
MSDSNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference