(-)-Formoterol (R,R)-Formoterol 208102-40-3 289657-27-8 299964-45-7 67346-49-0 Arformoterol Formamide, N-(2-hydroxy-5-((1R)-1-hydroxy-2-(((1R)-2-(4-methoxyphenyl)-1-methylethyl)amino)ethyl)phenyl)- Formamide, N-(2-hydroxy-5-(1-hydroxy-2-((2-(4-methoxyphenyl)-1-methylethyl)amino)ethyl)phenyl)-, (R-(R*,R*))-