170787-99-2 2-(4((((3,5-dimethylphenyl)amino)carbonyl)methyl)-phenoxy)-2 methyl propionic acid 2-(4-(2-((3,5-dimethylphenyl)amino)-2-oxoethyl)phenoxy)-2-methylpropanoic acid monosodium salt Efaproxiral sodium [USAN] Efaproxiral sodium Propanoic acid, 2-(4-(2-((3,5-dimethylphenyl)amino)-2-oxoethyl)phenoxy)-2-methyl-, monosodium salt RSR 13 sodium RSR13