Formoterol EP Impurity E (Mixture of Diastereomers)

2-amino-4-(1-hydroxy-2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenol

N-(2-hydroxy-5-(1-hydroxy-2-((1-(4-methoxyphenyl)propan-2-yl)(methyl)amino)ethyl)phenyl)formamide

N-(2-hydroxy-5-(1-hydroxy-2-((4-methoxyphenethyl)amino)ethyl)phenyl)formamide

Formoterol Dimer; N- [2- hydroxy- 5- [1- [[2- hydroxy- 5- [1- hydroxy- 2- [[2- (4- methoxyphenyl) - 1-methylethyl] amino] ethyl] phenyl] amino] - 2- [[2- (4- methoxyphenyl) - 1-methylethyl] amino] ethyl] phenyl] Formamide