i have to identify some compound (Lippopeptides). i have the mass for these compound but i don't know which mass belongs to which compound. can anybody help me to know about the database from where i can get the compound by entering its mass???
You can try mascot ( http://www.matrixscience.com/ ) or the GNPS server ( https://gnps.ucsd.edu/ProteoSAFe/static/gnps-splash.jsp ) they are usually very helpfull.