Formoterol Fumarate Dihydrate EP Impurity I

Chemical Name: N-[2-Hydroxy-5-[(1RS)-1-hydroxy-2-[[(1SR)-2-(4-methoxyphenyl)-1-methylethyl]amino]ethyl]phenyl]formamide (as per EP);N-(2-hydroxy-5-[(RS)-1-hydroxy-2-{[(SR)-1-(4-methoxyphenyl)propan-2-yl]amino}ethyl]phenyl)formamide (as per USP)

Synonym: Formoterol USP Related Compound I ; rel-(R,S)-Formoterol ; anti-rac-Formoterol

Smile: OC(C1=CC(NC=O)=C(O)C=C1)CNC(C)CC2=CC=C(OC)C=C2