Chemical Name: 2-[4-[4-(4-Hydroxydiphenylmethyl-1-piperidinyl)- butanoyl]phenyl]-2-methylpropanoic Acid hydrochloride
Synonym: Fexofenadine EP Impurity A (Hydrochloride)
Smile: OC(C1=CC=CC=C1)(C2=CC=CC=C2)C3CCN(CCCC(C4=CC=C(C(C)(C)C(OC)=O)C=C4)=O)CC3