... 0, Methanaminium) Purity:99% Appearance:white crystal Tetramethyl Ammonium ChlorideTMAC, etramine chloride, MethanaminiumCas:75-57-0EINECS No.: ... battery cells, comprises a quaternary ammonium salt, particularly, tetraalkyl ammonium chloride.More preferably Tetraheptyl ammonium chloride.Used in hybridization solutions ... polymorphisms with allele-specific oligonucleotides. Tetramethyl Ammonium Chloride