Bromo-PEG1-CH2COOH

• CAT Number: I016382
• CAS Number: 1135131-50-8
• Molecular Formula: C4H7BrO3
• Molecular Weight: 183.00
• Purity: ≥95%
• Synonyms: 2-(2-bromoethoxy)acetic acid
• InChI: InChI=1S/C4H7BrO3/c5-1-2-8-3-4(6)7/h1-3H2,(H,6,7)
• InChIKey: GBPDANKBFPPRCR-UHFFFAOYSA-N
• SMILES: C(CBr)OCC(=O)O

Bromo-PEG1-CH2COOH(CAT: I016382) is a short, functionalized PEG linker that combines a reactive bromo group with a terminal carboxylic acid. The PEG1 spacer (ethylene glycol unit) imparts minimal hydrophilicity while maintaining compact molecular size, making it ideal for applications requiring short, controlled linkers. The bromo group serves as an electrophilic handle for nucleophilic substitution with thiols, amines, or other nucleophiles, while the carboxylic acid provides a versatile site for further coupling to amines or alcohols. This reagent is useful in chemical biology, peptide modification, and material surface functionalization, enabling efficient and selective introduction of reactive handles into molecular frameworks.