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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2008-09-12 01:17:04 UTC
Update Date2022-03-07 02:49:41 UTC
HMDB IDHMDB0007252
Secondary Accession Numbers
  • HMDB07252
Metabolite Identification
Common NameDG(18:2(9Z,12Z)/20:0/0:0)
DescriptionDG(18:2(9Z,12Z)/20:0/0:0) is a diglyceride, or a diacylglycerol (DAG). It is a glyceride consisting of two fatty acid chains covalently bonded to a glycerol molecule through ester linkages. Diacylglycerols can have many different combinations of fatty acids attached at both the C-1 and C-2 positions. DG(18:2(9Z,12Z)/20:0/0:0), in particular, consists of one chain of linoleic acid at the C-1 position and one chain of arachidic acid at the C-2 position. The linoleic acid moiety is derived from seed oils, while the arachidic acid moiety is derived from peanut oil. Mono- and diacylglycerols are common food additives used to blend together certain ingredients, such as oil and water, which would not otherwise blend well. Dacylglycerols are often found in bakery products, beverages, ice cream, chewing gum, shortening, whipped toppings, margarine, and confections. Synthesis of diacylglycerol begins with glycerol-3-phosphate, which is derived primarily from dihydroxyacetone phosphate, a product of glycolysis (usually in the cytoplasm of liver or adipose tissue cells). Glycerol-3-phosphate is first acylated with acyl-coenzyme A (acyl-CoA) to form lysophosphatidic acid, which is then acylated with another molecule of acyl-CoA to yield phosphatidic acid. Phosphatidic acid is then de-phosphorylated to form diacylglycerol.Diacylglycerols are precursors to triacylglycerols (triglyceride), which are formed by the addition of a third fatty acid to the diacylglycerol under the catalysis of diglyceride acyltransferase. Since diacylglycerols are synthesized via phosphatidic acid, they will usually contain a saturated fatty acid at the C-1 position on the glycerol moiety and an unsaturated fatty acid at the C-2 position.
Structure
Data?1582752444
Synonyms
ValueSource
1-Linoleoyl-2-arachidonyl-sn-glycerolChEBI
DAG(18:2N6/20:0)ChEBI
DAG(18:2W6/20:0)ChEBI
DG(18:2N6/20:0)ChEBI
DG(18:2W6/20:0)ChEBI
Diacylglycerol(18:2n6/20:0)ChEBI
Diacylglycerol(18:2W6/20:0)ChEBI
Diacylglycerol(18:2/20:0)HMDB
Diacylglycerol(38:2)HMDB
DG(18:2/20:0)HMDB
DiglycerideHMDB
DAG(18:2/20:0)HMDB
DiacylglycerolHMDB
DG(38:2)HMDB
1-(9Z,12Z-Octadecadienoyl)-2-eicosanoyl-sn-glycerolHMDB
DAG(38:2)HMDB
DG(18:2(9Z,12Z)/20:0/0:0)Lipid Annotator, ChEBI
Chemical FormulaC41H76O5
Average Molecular Weight649.0391
Monoisotopic Molecular Weight648.569275542
IUPAC Name(2S)-1-hydroxy-3-[(9Z,12Z)-octadeca-9,12-dienoyloxy]propan-2-yl icosanoate
Traditional Namediacylglycerol
CAS Registry NumberNot Available
SMILES
[H][C@](CO)(COC(=O)CCCCCCC\C=C/C\C=C/CCCCC)OC(=O)CCCCCCCCCCCCCCCCCCC
InChI Identifier
InChI=1S/C41H76O5/c1-3-5-7-9-11-13-15-17-19-20-22-24-26-28-30-32-34-36-41(44)46-39(37-42)38-45-40(43)35-33-31-29-27-25-23-21-18-16-14-12-10-8-6-4-2/h12,14,18,21,39,42H,3-11,13,15-17,19-20,22-38H2,1-2H3/b14-12-,21-18-/t39-/m0/s1
InChI KeyZNOIOLWTHOFTSX-LWXJMYDFSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 1,2-diacylglycerols. These are diacylglycerols containing a glycerol acylated at positions 1 and 2.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassGlycerolipids
Sub ClassDiradylglycerols
Direct Parent1,2-diacylglycerols
Alternative Parents
Substituents
  • 1,2-acyl-sn-glycerol
  • Fatty acid ester
  • Fatty acyl
  • Dicarboxylic acid or derivatives
  • Carboxylic acid ester
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Primary alcohol
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effect
Disposition
Biological locationSource
Process
Naturally occurring process