Trofinetide Dimer Impurity 1

Chemical Name: ((S)-1-(((S)-4-Carboxy-4-((S)-1-glycyl-2-methylpyrrolidine-2-carboxamido)butanoyl)glycyl)-2-methylpyrrolidine-2-carbonyl)-L-glutamic acid

Synonym: Glycyl-2-methyl-L-prolyl-L-γ-glutamylglycyl-2-methyl-L-prolyl-L-glutamic acid

Smile: O=C(O)CC[C@@H](C(O)=O)NC([C@@]1(C)N(C(CNC(CC[C@@H](C(O)=O)NC([C@@]2(C)N(C(CN)=O)CCC2)=O)=O)=O)CCC1)=O