Lithium 2 2 6 6-tetramethylpiperidide July 8, 2019 16 32 64 128 Lithium 2 2 6 6 tetramethylpiperidine Lithium 2 2 6 6 tetramethylpiperidide Lithium magnesium 2 2 6 6-tetramethylpiperidin-1-ide dichloride