Alvimopan Impurity 13

Chemical Name: 3-((3S,4R)-3,4-dimethylpiperidin-4-yl)phenol

Synonym: Citalopram S-Isomer Oxalate ; Escitalopram Oxalate ; (S)-(+)-1-(3-Dimethylaminopropyl)-1-(4-fluoro-phenyl)-1,3-dihydro-isobenzofuran-5-carbonitrile oxalate ;