LIPID MAPS® Structure Database (LMSD)

Lipid Classification System

The LIPID MAPS® Lipid Classification System is comprised of eight lipid categories, each with its own subclassification hierarchy. All lipids in the LIPID MAPS® Structure Database (LMSD) have been classified using this system and have been assigned LIPID MAPS® ID's (LM_ID) which reflects their position in the classification hierarchy. LMSD can be searched by lipid class, common name, systematic name or synonym, mass, InChIKey or LIPID MAPS® ID with the search box in the banner, or alternatively, by LIPID MAPS® ID, systematic or common name, mass, formula, category, main class, subclass data, or structure or sub-structure with one of the search interfaces in the LMSD database section. Each LMSD record contains an image of the molecular structure, common and systematic names, links to external databases, Wikipedia pages (where available), other annotations and links to structure viewing tools. In addition to LMSD search interfaces, you can drill down through the classification hierarchy below to the LMSD record for an individual lipid.

Lipid Categories

Fatty Acyls [FA]
Glycerolipids [GL]
Glycerophospholipids [GP]
Sphingolipids [SP]
Sterol Lipids [ST]
Prenol Lipids [PR]
Saccharolipids [SL]
Polyketides [PK]


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Update on LIPID MAPS classification, nomenclature, and shorthand notation for MS-derived lipid structures., Liebisch G, Fahy E, Aoki J, Dennis EA, Durand T, Ejsing CS, Fedorova M, Feussner I, Griffiths WJ, Köfeler H, Merrill AH Jr, Murphy RC, O'Donnell VB, Oskolkova O, Subramaniam S, Wakelam MJO, Spener F., (2020), J. Lipid Res. 61: 1539-1555., PMID: 33037133.
Shorthand notation for lipid structures derived from mass spectrometry., Liebisch G, Vizcaíno JA, Köfeler H, Trötzmüller M, Griffiths WJ, Schmitz G, Spener F, Wakelam MJ., (2013), J. Lipid Res. 54: 1523–1530., PMID: 23549332.