Cetrorelix Impurity 4

Chemical Name: (S)-1-(((R)-2-((S)-2-((S)-2-((R)-2-((R)-2-((R)-2-((R)-2-acetamido-3-(naphthalen-2-yl)propanamido)-3-(4-chlorophenyl)propanamido)-3-(pyridin-3-yl)propanamido)-3-(pyridin-3-yl)propanamido)-3-hydroxypropanamido)-3-(4-hydroxyphenyl)propanamido)-5-ureidopentanoyl)-L-leucyl-L-arginyl)-N-((S)-1-amino-1-oxopropan-2-yl)pyrrolidine-2-carboxamide

Synonym: (8R,9S,13S,14S,17S)-3-acetoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl heptanoate;