(2-(3,4-Dihydroxyphenyl)-2-oxoethyl)dimethylsulfonium (2-(3,4-Dihydroxyphenyl)-2-oxoethyl)dimethylsulfonium iodide 80263-70-3 Dhpoe-dms Sulfonium, (2-(3,4-dihydroxyphenyl)-2-oxoethyl)dimethyl-