Structure Database (LMSD)
Common Name
PI 18:1(11Z)/18:1(11Z)
Systematic Name
1,2-di-(11Z-octadecenoyl-sn-glycero-3-phospho-(1'-myo-inositol)
Synonyms
LM ID
LMGP06010973
Formula
Exact Mass
Calculate m/z
862.557132
Sum Composition
Abbrev Chains
PI 18:1_18:1
Status
Curated
3D model of PI 18:1(11Z)/18:1(11Z)
Please note: Where there are chiral atoms but the stereochemistry is undefined, the 3D model takes an arbitrary conformation
Classification
Category
Main Class
Sub Class
References
String Representations
InChiKey (Click to copy)
HJXLLSHIQZPQLZ-ZPSVZRBRSA-N
InChi (Click to copy)
InChI=1S/C45H83O13P/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-38(46)55-35-37(36-56-59(53,54)58-45-43(51)41(49)40(48)42(50)44(45)52)57-39(47)34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h13-16,37,40-45,48-52H,3-12,17-36H2,1-2H3,(H,53,54)/b15-13-,16-14-/t37-,40-,41-,42+,43-,44-,45-/m1/s1
SMILES (Click to copy)
[C@]([H])(OC(CCCCCCCCC/C=C\CCCCCC)=O)(COP(=O)(O)O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](O)[C@H]1O)COC(CCCCCCCCC/C=C\CCCCCC)=O
Other Databases
Calculated Physicochemical Properties
Heavy Atoms
59
Rings
1
Aromatic Rings
Rotatable Bonds
40
Van der Waals Molecular Volume
898.24
Topological Polar Surface Area
209.51
Hydrogen Bond Donors
6
Hydrogen Bond Acceptors
13
logP
11.58
Molar Refractivity
234.85
Admin
Created at
8th Sep 2025
Updated at
11th Nov 2025
LIPID MAPS® abbreviations for glycerophospholipids (GP)
The LIPID MAPS® glycerophospholipid abbreviations (PC, PE, etc.) are used here to refer to species with one or two radyl side-chains where the structures of the side chains are indicated within parentheses in the 'Headgroup(sn1/sn2)' format (e.g. PC(16:0/18:1(9Z)). By default, R stereochemistry at the C-2 carbon of glycerol and attachment of the headgroup at the sn3 position is assumed. Also, acyl chains are assumed by default. The 'O-' prefix is used to indicate the presence of an alkyl ether substituent e.g. PC(O-16:0/18:1(9Z)), whereas the 'P-' prefix is used for the 1Z-alkenyl ether (Plasmalogen) substituent e.g. PC(P-16:0/18:1(9Z)).
For molecules with opposite (S) stereochemistry at C2 of the glycerol group and attachment of the headgroup at the sn1 position, the stereochemistry specification of [S] is appended to the abbreviation. The 'Headgroup(sn3/sn2)' abbreviation format is used.
For molecules with unknown stereochemistry at the C-2 carbon of the glycerol group, the stereochemistry specification of [U] is appended to the abbreviation and the structure is drawn with C-2 stereochemistry unspecified.
The LIPID MAPS® glycerophospholipid abbreviations (PC, PE, etc.) are used here to refer to species with one or two radyl side-chains where the structures of the side chains are indicated within parentheses in the 'Headgroup(sn1/sn2)' format (e.g. PC(16:0/18:1(9Z)). By default, R stereochemistry at the C-2 carbon of glycerol and attachment of the headgroup at the sn3 position is assumed. Also, acyl chains are assumed by default. The 'O-' prefix is used to indicate the presence of an alkyl ether substituent e.g. PC(O-16:0/18:1(9Z)), whereas the 'P-' prefix is used for the 1Z-alkenyl ether (Plasmalogen) substituent e.g. PC(P-16:0/18:1(9Z)).
For molecules with opposite (S) stereochemistry at C2 of the glycerol group and attachment of the headgroup at the sn1 position, the stereochemistry specification of [S] is appended to the abbreviation. The 'Headgroup(sn3/sn2)' abbreviation format is used.
For molecules with unknown stereochemistry at the C-2 carbon of the glycerol group, the stereochemistry specification of [U] is appended to the abbreviation and the structure is drawn with C-2 stereochemistry unspecified.