Description

Fluorescein-Peg3-Amine is a high-purity, amine-functionalized fluorescent labeling reagent designed for advanced bioconjugation. This compound matters for researchers and manufacturers requiring precise, stable covalent attachment of a bright fluorescent tag to biomolecules, enabling sensitive detection and imaging. It is primarily needed by professionals in biopharmaceutical development, diagnostic assay manufacturing, and life science research for applications in flow cytometry, immunoassays, and fluorescence microscopy.

Application

• Bioconjugation and Fluorescent Labeling: Covalent attachment to proteins, antibodies, peptides, and oligonucleotides for detection and imaging.
• Diagnostic Assay Development: Key reagent in the production of fluorescent probes and kits for ELISA, lateral flow assays, and in vitro diagnostics (IVD).
• Cell Biology and Flow Cytometry: Labeling of cell surface markers, receptors, or other targets for analysis by flow cytometry and fluorescence-activated cell sorting (FACS).
• Bioimaging and Microscopy: Preparation of fluorescently tagged molecules for confocal, super-resolution, and live-cell imaging studies.
• Drug Delivery & Biotherapeutic Tracking: Conjugation to nanoparticles, polymers, or therapeutic agents to monitor distribution, uptake, and pharmacokinetics.
• Material Science & Sensor Development: Functionalization of surfaces and materials to create fluorescent biosensors and bio-interfaces.

Basic Information

Product Name	Fluorescein-Peg3-Amine
CAS No.	1807539-04-3
Molecular Formula	C33H37N3O9
Molecular Weight	619.67 g/mol
Synonyms	5-FAM-PEG3-Amine; 5-Carboxyfluorescein-PEG3-Amine; 6-FAM-PEG3-NH2; Fluorescein-5-PEG3-Amine; 5(6)-Carboxyfluorescein Triethylene Glycol Amide; 5-FAM-PEG3-NH2; 5(6)-FAM, SE-PEG3-Amine; N-(Fluorescein-5-yl)-3,6,9-trioxa-12-azadodecanamide
EINECS	Contact for details

Quality Control

Our Fluorescein-Peg3-Amine is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for sensitive research and diagnostic 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 at -20°C or below under desiccant. This product is hygroscopic (moisture-sensitive) and light-sensitive. Allow the vial to equilibrate to room temperature in a dry environment before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	Orange to red solid
Identification (HPLC/MS)	Conforms to structure
Purity (HPLC)	≥ 95%
Water Content (KF)	≤ 1.0%
Solubility	Soluble in DMSO, DMF, acetonitrile

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