DNP-PEG4-acid

• CAT Number: I016375
• CAS Number: 858126-76-8
• Molecular Formula: C17H25N3O10
• Molecular Weight: 431.39
• Purity: ≥95%
• Synonyms: 3-[2-[2-[2-[2-(2,4-dinitroanilino)ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
• InChI: InChI=1S/C17H25N3O10/c21-17(22)3-5-27-7-9-29-11-12-30-10-8-28-6-4-18-15-2-1-14(19(23)24)13-16(15)20(25)26/h1-2,13,18H,3-12H2,(H,21,22)
• InChIKey: PTIFQVOBASTCFB-UHFFFAOYSA-N
• SMILES: C1=CC(=C(C=C1[N+](=O)[O-])[N+](=O)[O-])NCCOCCOCCOCCOCCC(=O)O

DNP-PEG4-acid(CAT: I016375) is a PEGylated linker molecule incorporating a dinitrophenyl (DNP) moiety, a four-unit polyethylene glycol (PEG4) spacer, and a terminal carboxylic acid group. The DNP group serves as a hapten or antigenic tag, frequently applied in immunological studies for generating or detecting anti-DNP antibodies. The PEG4 chain improves water solubility, provides structural flexibility, and minimizes steric hindrance in conjugation processes. The carboxyl terminus allows straightforward coupling to amines or other reactive functionalities, making it suitable for preparing labeled peptides, proteins, or drug conjugates. This versatile reagent supports applications in immunology, bioconjugation, and targeted molecular design.