1-Propanesulfonic acid, 3-((3,5-dimethoxyphenyl)ethylamino)-2-hydroxy-, monosodium salt 2-Daos 3-((3,5-Dimethoxyphenyl)ethylamino)-2-hydroxy-1-propanesulfonic acid monosodium salt 83777-30-4 N-Ethyl-N-(2-hydroxy-3-sulfopropyl)-3,5-dimethoxyaniline