2-Naphthalenesulfonic acid, 7-((2-hydroxy-5-((4-hydroxyphenyl)sulfonyl)phenyl)methyl)(1-methylpropyl)-, monoammonium salt 66327-55-7 Ammonium 7-((2-hydroxy-5-((4-hydroxyphenyl)sulphonyl)phenyl)methyl)(1-methylpropyl)naphthalene-2-sulphonate EINECS 266-315-2