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Tetramethylammonium hydroxide (TMAH or TMAOH) is a quaternary ammonium salt with the molecular formula N(CH3)4+ OH−.
T 1463 (OTTO) Tetramethylammonium hydroxide 0.1 N in isopropanol / methanol Cas 75-59-2 - used in thermochemolysis, an analytical technique involving both pyrolysis and chemical derivatization of the analyte.