Formoterol Impurity H (Mixture of Diastereomers)

Chemical Name: N-[5-[(1RS)-2-[benzyl[(1RS)-2-(4-methoxyphenyl)-1-methylethyl]amino]-1-hydroxyethyl]-2-hydroxyphenyl]formamide (as per EP); N-{5-[(RS)-2-{Benzyl[(RS)-1-(4-methoxyphenyl)propan-2-yl]amino}-1-hydroxyethyl]-2-hydroxyphenyl}formamide (as per USP)

Synonym: 5-chloro-N-((4-(2-(5-chloro-2-methoxybenzamido)ethyl)phenyl)sulfonyl)-2-methoxybenzamide

Smile: O=CNC1=CC(C(O)CN(CC2=CC=CC=C2)C(C)CC3=CC=C(OC)C=C3)=CC=C1O