diaminomethylidene-dimethyl-azanium;Guanidine, 1, 1-dimethyl-, sulfate (2:1);1-1-dimethylguanidine sulfate salt;1,1-dimethylguanidine; sulfuric acid;N (1),N(1)-Dimethylguanidine sulfate (2:1);Guanidine, N,N-dimethyl-, sulfate (2:1);
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