(Carbethoxymethyl)dimethylsulfonium bromide 5187-82-6 NSC122299 Sulfonium, (2-ethoxy-2-oxoethyl)dimethyl-, bromide Sulfonium, (carbethoxymethyl)dimethyl-, bromide Sulfonium, (carboxymethyl)dimethyl-, bromide, ethyl ester WLN: 2OV1S1&1 &Q &E