1-((4-hydroxy-3-nitrophenyl)acetoxy)pyrrolidine-2,5-dione is the ester formed between N-hydroxysuccinimide and (4-hydroxy-3-nitrophenyl)acetic acid. It has a role as a hapten. It is a N-hydroxysuccinimide ester and a member of 2-nitrophenols. It contains a (4-hydroxy-3-nitrophenyl)acetyl group. It is functionally related to a (4-hydroxy-3-nitrophenyl)acetic acid.