: M 2526 (OTTOKEMI) Methyllithium solution, 1.4 M in diethyl ether Cas 917-54-4 - used in chemical research Methyllithium solution ( 3.1 M in diethoxymethane) can undergo 1,2-addition to benzaldehyde catalyzed by a 2-(2-hydroxyaryl)alcohol (HAROL) ligand in the presence of titanium isopropoxide to form (S)-1-phenylethan-1-o