36175-10-7 4,4'-(2-Pyridinylmethylene)bisphenol, acetate (ester) hydrogen sulfate (ester), sodium salt 4-(alpha-(p-Acetoxyphenyl)-2-picolyl)phenylsulfuric acid sodium salt Phenol, 4,4'-(2-pyridinylmethylene)bis-, acetate (ester) hydrogen sulfate (ester), sodium salt Spa-S-142