1-Propanesulfonic acid, 2-hydroxy-3-(3-(trihydroxysilyl)propoxy)- 2-Hydroxy-3-(3-(trihydroxysilyl)propoxy)propane-1-sulphonic acid 2-Hydroxy-3-(3-(trihydroxysilyl)propoxy)propanesulfonic acid 70869-38-4 EINECS 274-967-4