Naproxen Impurity 1

Chemical Name: 2-(6-hydroxynaphthalen-2-yl)acetic acid

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

Smile: OC(CC1=CC2=CC=C(O)C=C2C=C1)=O