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Methyl methanesulfonate is a DNA adduct that adds methyl groups to Dna at 7-guanine, 3-guanine and 3-adenine.
M 2155 (OTTO) Methyl methanesulphonate, 99% Cas no 66-27-3 - used in cancer treatment. A DNA adduct that adds methyl groups to Dna at 7-guanine, 3-guanine and 3-adenine.