Formoterol Impurity 3（Formoterol EP Impurity C） Formoterol impurity 3/Formoterol EP Impurity C(Mixture of Diastereomers)/N-Deformyl-N-acetyl Formoterol/N-[2-Hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]acetamide Formoterol EP Impurity C Acetamide, N-[2-hydroxy-5-[1-hydroxy-2-[[2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]- N-(2-hydroxy-5-(1-hydroxy-2-((1-(4-methoxyphenyl)propan-2-yl)amino)ethyl)phenyl)acetamide N-Deformyl-N-acetyl Formoterol DISCONTINUED, offer D229065 Formoterol Related Compound C Formoterol Impurity 3 Monomer (Formoterol EP Impurity C)