1,2-Ethanediol, 1-(4-hydroxy-3-methoxyphenyl)-, mono(hydrogen sulfate) 28700-49-4 3-Methoxy-4-hydroxyphenylethyleneglycol sulfate 3-Methoxy-4-hydroxyphenylglycol sulfate conjugate 3-methoxy-4-hydroxyphenylglycol sulfate Mhpg-SO4