64036-93-7 Bis(2-hydroxyethyl)-2-(2-hydroxyethylthio)ethylsulfonium picrylsulfonate Sulfonium, bis(2-hydroxyethyl)-2-(2-hydroxyethylthio)ethyl-, picrylsulfonate beta-Hydroxyethyl-beta-(bis(beta-hydroxyethyl)sulfonium)ethyl suflide picrylsulfonate