Search the LIPID MAPS® Structure Database (LMSD) with a mass (m/z) value

Use either form to search the LMSD by entering an m/z value in the "Mass" input box and selecting an appropriate ion type and mass tolerance range.
Limit the search to one or more lipid categories (left) or to a single category/main class/sub class (right).

Limit search to lipid categories Fatty acyls: Glycerolipids: Glycerophospholipids: Sphingolipids: Sterols: Prenol lipids: Mass (m/z) Ion [M+H]+ [M+2H]2+ [M+3H]3+ [M+4H]4+ [M+K]+ [M+2K]2+ [M+Na]+ [M+2Na]2+ [M+Li]+ [M+2Li]2+ [M+NH4]+ [M-H]- [M-2H]2- [M-3H]3- [M-4H]4- [M+Cl]- [M+OAc]- M(neutral) Mass Tolerance +/- 1.0 +/- 0.5 +/- 0.3 +/- 0.2 +/- 0.1 +/- 0.05 +/- 0.01 +/- 0.005 +/- 0.001 +/- 0.0005 +/- 0.0003 +/- 0.0002 +/- 0.0001 Include All records Curated records only Computationally generated records only

Choose from classification menus to limit search Category: FA GL GP SP ST PR SL PK Main class: Sub class: Mass (m/z) Ion [M+H]+ [M+2H]2+ [M+3H]3+ [M+4H]4+ [M+K]+ [M+2K]2+ [M+Na]+ [M+2Na]2+ [M+Li]+ [M+2Li]2+ [M+NH4]+ [M-H]- [M-2H]2- [M-3H]3- [M-4H]4- [M+Cl]- [M+OAc]- M(neutral) Mass Tolerance +/- 1.0 +/- 0.5 +/- 0.3 +/- 0.2 +/- 0.1 +/- 0.05 +/- 0.01 +/- 0.005 +/- 0.001 +/- 0.0005 +/- 0.0003 +/- 0.0002 +/- 0.0001 Include All records Curated records only Computationally generated records only