Structure database (LMSD)

  MDLMOL files can be opened in various drawing programs. In ChemDraw, open as filetype "MDL Molfile".
LM IDLMGL05010015
Common NameDGDG(18:2(9Z,12Z)/18:2(9Z,12Z)[15(R)OH-18:2(9Z,12Z])
Systematic Name1-(9Z,12Z-octadecadienoyl)-2-(15R-[9Z,12Z-octadecadienoyloxy]-9Z,12Z-
octadecadienoyl)-3-(α-D-galactosyl-1-6-β-D-galactosyl)-sn-glycerol
SynonymsDigalactosyldiacylglycerol(18:2(9Z,12Z)/18:2(9Z,12Z)[15(R)OH-18:2(9Z,12Z])
Exact Mass
1218.8369 (neutral)    Calculate m/z:
FormulaC69H118O17
CategoryGlycerolipids [GL]
Main ClassGlycosyldiradylglycerols [GL05]
Sub ClassGlycosyldiacylglycerols [GL0501]
PubChem CID52922093
InChIKeyNPIXIKUSFQFHKK-QTKLTCRQSA-N  Show lipids differing only in stereochemistry/bond geometry
InChIInChI=1S/C69H118O17/c1-4-7-9-11-13-15-17-19-21-23-27-31-35-39-43-48-59(71)80-52-
56(53-81-68-67(79)65(77)63(75)58(86-68)54-82-69-66(78)64(76)62(74)57(51-70)85-69
)84-61(73)50-45-41-37-33-29-25-26-30-34-38-42-47-55(46-6-3)83-60(72)49-44-40-36-
32-28-24-22-20-18-16-14-12-10-8-5-2/h13-16,19-22,26,30,38,42,55-58,62-70,74-79H,
4-12,17-18,23-25,27-29,31-37,39-41,43-54H2,1-3H3/b15-13-,16-14-,21-19-,22-20-,30
-26-,42-38-/t55-,56-,57-,58-,62+,63+,64?,65?,66?,67?,68-,69+/m1/s1
SMILESC(CCCCCCC/C=C\C/C=C\CCCCC)(=O)O[C@H](CCC)C/C=C\C/C=C\CCCCCCCC(=O)O[C@]([H])(COC(
CCCCCCC/C=C\C/C=C\CCCCC)=O)CO[C@@H]1O[C@H](CO[C@H]2O[C@H](CO)[C@H](O)C(O)C2O)[C@
H](O)C(O)C1O
StatusActive
ReferencesIsolation and structure of a new galactolipid from oat seeds Hamberg H et al. Lipids 33, 355-363 (1998)
Calculated physicochemical properties (?):
 Heavy Atoms86Rings2Aromatic Rings0Rotatable Bonds56
 van der Waals
Molecular Volume
1303.21Topological Polar
Surface Area
261.57Hydrogen
Bond Donors
7Hydrogen
Bond Acceptors
17
 logP16.62Molar
Refractivity
344.63    
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.