L-Glycerol 1-Phosphate Lithium Salt is the salt form of L-Glycerol 1-Phosphate, which is a reagent with citrate to form complexes of (S)-3-O-Geranylgeranylglyceryl Phosphate Synthase (GGGPS) from Archaeoglobus fulgidus (AfGGGPS), an enzyme that performs the committed step in archaeal lipid biosynthesis.