Definition: The term "tetramethylium" is not commonly used or defined in scientific or technical terms. Tetramethylium is a chemical compound that has the formula C8H10N2O2. It is a type of amide, which is a type of compound consisting of one amino acid (amide) and two nitrogen atoms. The term "tetramethylium" could refer to a specific compound or an abbreviation for it, but without more
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