Description

Azido-PEG4-CH2CO2H is a heterobifunctional polyethylene glycol (PEG) linker featuring an azide group and a carboxylic acid terminus. This compound is essential for creating stable, biocompatible conjugates in bioconjugation and materials science, leveraging click chemistry for efficient and selective coupling. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotechnology, and diagnostic sectors for developing antibody-drug conjugates (ADCs), peptide modifications, and functionalized nanoparticles.

Application

• Bioconjugation reagent for synthesizing Antibody-Drug Conjugates (ADCs) and protein-polymer hybrids.
• Functional linker in peptide synthesis and modification for introducing PEG spacers.
• Surface functionalization agent for nanoparticles, quantum dots, and biosensors to improve solubility and targeting.
• Key intermediate in the development of PEGylated therapeutics and drug delivery systems.
• Cross-linking agent for hydrogel formation and biomaterial engineering.
• Tool compound in click chemistry applications for labeling and tracking biomolecules.
• Building block for creating diagnostic probes and imaging agents.
• Modifier for solid supports and chromatography media used in affinity purification.

Basic Information

Product Name	Azido-PEG4-CH2CO2H
CAS No.	1694731-93-5
Molecular Formula	C15H27N3O8
Molecular Weight	377.39 g/mol
Synonyms	Azido-PEG4-acetic acid; 2-[2-[2-[2-(2-Azidoethoxy)ethoxy]ethoxy]ethoxy]acetic acid; 17-Azido-3,6,9,12-tetraoxaheptadecanoic acid; N3-PEG4-CH2COOH; Azido tetraethylene glycol acetic acid; Azido-PEG4-C2-acid; PEG4-azide-acid; Azido-PEG4-COOH
EINECS	Contact for details

Quality Control

Our Azido-PEG4-CH2CO2H is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and MS, to ensure high purity and consistent performance for critical research and development applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C or as indicated on the label. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability. Keep container tightly sealed in a desiccated environment.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or oil
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 1.0%
Assay	≥ 90% (by NMR)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.