Structure database (LMSD)

  MDLMOL files can be opened in various drawing programs. In ChemDraw, open as filetype "MDL Molfile".
LM IDLMGL02010002
Common NameDG(18:0/18:0/0:0)[rac]
Systematic Name1,2-dioctadecanoyl-rac-glycerol
SynonymsDG(36:0); DG(18:0_18:0)
Exact Mass
624.5693 (neutral)    Calculate m/z:
FormulaC39H76O5
CategoryGlycerolipids [GL]
Main ClassDiradylglycerols [GL02]
Sub ClassDiacylglycerols [GL0201]
PubChem CID102615
HMDB IDHMDB0031012
InChIKeyUHUSDOQQWJGJQS-UHFFFAOYSA-N  Show lipids differing only in stereochemistry/bond geometry
InChIInChI=1S/C39H76O5/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-38(41)43-36-37(
35-40)44-39(42)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h37,40H,3-36H2,1-2
H3
SMILESOCC([H])(OC(CCCCCCCCCCCCCCCCC)=O)COC(CCCCCCCCCCCCCCCCC)=O
MS SpectraView MoNA MS spectra     
StatusActive
Calculated physicochemical properties (?):
 Heavy Atoms44Rings0Aromatic Rings0Rotatable Bonds38
 van der Waals
Molecular Volume
721.93Topological Polar
Surface Area
72.83Hydrogen
Bond Donors
1Hydrogen
Bond Acceptors
5
 logP12.81Molar
Refractivity
188.51    
LIPID MAPS abbreviations for glycerolipids (GL)

The LIPID MAPS glycerolipid abbreviations (MG,DG,TG) are used here to refer to species with one, two or three radyl side-chains, respectively, where the structures of the side chains are indicated within parentheses in the 'Prefix(sn1/sn2/sn3)' format (e.g. TG(16:0/18:1(9Z)/18:0). Acyl chains are assumed by default. The alkyl ether linkage is represented by the 'O-' prefix, e.g. DG(O-16:0/18:1(9Z)/0:0), whereas the 1Z-alkenyl ether (Plasmalogen) linkage is represented by the 'P-' prefix, e.g. and DG(P-14:0/18:1(9Z)/0:0).

For Diradylglycerols and Triradylglycerols, it is not always possible to experimentally determine the exact position of radyl groups on the glycerol group. For Diradylglycerols with two different radyl groups, two different structural isomers exist. For Triradylglycerols with three different radyl groups, six different isomers exist.

Instead of drawing all possible structural isomers explicitly for Diradylglycerols and Triradylglycerols, the LIPID MAPS abbreviation scheme supports the isomeric specification. A suffix containing 'iso' along with the number of possible isomers is appended to the abbreviation (e.g. [iso2],[iso6]) and a single unique LM_ID is assigned. The structure assigned to the LM_ID corresponds to the radyl substitution shown in the abbreviation. An option is provided to display the other isomers in the group.

The [rac] designation refers to racemic mixtures due to substitution at the sn1 and sn3 positions of glycerol.