Description

n-(Azido-Peg2)-n-Fluorescein-Peg3-Acid CAS NO 2086689-04-3 is a specialized heterobifunctional crosslinking reagent that combines a reactive azide group, a fluorescent fluorescein moiety, and a carboxylic acid terminus, connected by polyethylene glycol (PEG) spacers. This molecular architecture is critical for enabling bioorthogonal click chemistry conjugation while providing a fluorescent tag for detection and tracking in complex biological systems. It is an essential tool for researchers and developers in bioconjugation, proteomics, and diagnostic assay development, facilitating the creation of labeled antibodies, proteins, and other biomolecules with high specificity and efficiency.

Application

• Bioconjugation and Protein Labeling: Site-specific conjugation of fluorescent probes to antibodies, peptides, and other proteins via the azide group for click chemistry reactions.
• Diagnostic Assay Development: Synthesis of fluorescently labeled detection reagents for use in ELISA, flow cytometry, and immunofluorescence applications.
• Chemical Biology and Proteomics: As a building block for creating activity-based probes to study enzyme function, protein-protein interactions, and cellular localization.
• Biomaterial and Surface Functionalization: Modification of nanoparticles, hydrogels, and biosensor surfaces with fluorescent tags for imaging and tracking.
• Drug Delivery System Research: Conjugation to drug molecules or carriers to create traceable, targeted therapeutic agents.
• Academic and Pharmaceutical R&D: A versatile reagent for fundamental research in cell biology, molecular imaging, and the development of novel therapeutics.

Basic Information

Item	Details
Product Name	n-(Azido-Peg2)-n-Fluorescein-Peg3-Acid
CAS No.	2086689-04-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Azido-PEG2-Fluorescein-PEG3-Acid; 5-FAM-PEG3-Azide; 5-Carboxyfluorescein-PEG3-Azide; Fluorescein-PEG3-N3 Acid; 6-FAM-PEG3-Azide; Azido-PEG2-PEG3-Fluorescein-Acid; N3-PEG2-FAM-PEG3-COOH; Azido-PEG2-(Fluorescein-PEG3)-Acid
EINECS	Contact for details

Quality Control

Our n-(Azido-Peg2)-n-Fluorescein-Peg3-Acid is manufactured under strict quality protocols to ensure batch-to-batch consistency and high performance in sensitive applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity verification and structural confirmation via mass spectrometry. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below under desiccant. This compound is strictly light-sensitive and must be protected from all light exposure during storage and handling. Allow the vial to equilibrate to room temperature before opening to minimize moisture condensation.

Specification

Item	Specification
Appearance	Orange to red solid or film
Identification (HPLC/MS)	Conforms to structure
Purity (HPLC)	≥ 95%
Solubility	Soluble in DMSO, DMF, acetonitrile

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