Description

Azido-Peg7-Azide (CAS NO 225523-86-4) is a bifunctional polyethylene glycol (PEG) linker featuring terminal azide groups, enabling efficient conjugation via click chemistry. This compound is critical for creating stable, biocompatible crosslinks in advanced bioconjugation and materials science applications. It is primarily utilized by researchers and manufacturers in the pharmaceutical, biotech, and nanotechnology sectors for developing drug delivery systems, hydrogels, and diagnostic reagents.

Application

• Bioconjugation and Protein/Peptide Modification: Used as a heterobifunctional crosslinker to attach biomolecules, such as antibodies or peptides, to surfaces, nanoparticles, or other polymers via copper-catalyzed azide-alkyne cycloaddition (CuAAC).
• Drug Delivery System Development: Facilitates the synthesis of PEGylated prodrugs and targeted nanocarriers, enhancing solubility, prolonging circulation time, and improving therapeutic efficacy.
• Polymer and Hydrogel Synthesis: Serves as a key building block for creating crosslinked, biodegradable polymer networks and hydrogels for tissue engineering and 3D cell culture scaffolds.
• Surface Functionalization: Enables the modification of material surfaces (e.g., gold, silicon, polymers) with bioactive molecules for biosensor and microarray fabrication.
• Diagnostic Reagent Preparation: Used in the development of fluorescent probes and contrast agents for in vitro and in vivo imaging applications.
• Click Chemistry Tool Compound: A versatile reagent for academic and industrial research involving bioorthogonal chemistry for labeling and tracking biomolecules.

Basic Information

Item	Details
Product Name	Azido-Peg7-Azide
CAS No.	225523-86-4
Molecular Formula	C20H38N6O8
Molecular Weight	490.55 g/mol
Synonyms	1-Azido-3,6,9,12,15,18,22-heptaoxapentacosan-25-azide; Bis-Azido-PEG7; α,ω-Diazido-hepta(ethylene glycol); PEG7-diazide; Heptaethylene glycol diazide; 3,6,9,12,15,18,22-Heptaoxapentacosane-1,25-diazide; Azido-PEG7-N3; N3-PEG7-N3
EINECS	Contact for details

Quality Control

Our Azido-Peg7-Azide is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and development. Certificates of Analysis (COA) with detailed specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store the product at -20°C or below under an inert atmosphere (e.g., argon or nitrogen) to prevent oxidation and degradation. Allow the container to reach room temperature in a desiccator before opening to minimize moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 0.5%

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