Description

Fluorescein-O'-Acetic Acid* CAS NO 233759-98-3 is a chemically modified derivative of fluorescein, a cornerstone fluorophore in life sciences. This compound is engineered to serve as a versatile reactive intermediate for the synthesis of advanced fluorescent probes and labeling reagents. It is primarily utilized by researchers and manufacturers in the fields of bioconjugation, diagnostic assay development, and cellular imaging, where precise and stable fluorescent tagging is required.

Application

• Synthesis of Fluorescent Probes: Key intermediate for creating custom fluorescent dyes and sensors.
• Bioconjugation & Labeling: Used to covalently attach fluorescent tags to antibodies, proteins, peptides, and other biomolecules.
• Diagnostic Assay Development: Essential for manufacturing reagents used in fluorescence-based immunoassays (e.g., ELISA, lateral flow tests).
• Cellular & Molecular Imaging: Building block for probes used in fluorescence microscopy and flow cytometry.
• Material Science Markers: Incorporation into polymers or nanoparticles to create traceable or functional materials.
• Research & Development: Critical tool in academic and industrial R&D for studying biological processes and developing new detection methods.

Basic Information

Product Name	Fluorescein-O'-Acetic Acid* CAS NO 233759-98-3
CAS No.	233759-98-3
Molecular Formula	C24H16O7
Molecular Weight	416.38 g/mol
Synonyms	5(6)-Carboxyfluorescein-O-acetic Acid; Fluorescein-O-Acetic Acid; 2-[3,6-Dihydroxy-9-(2-carboxymethoxyphenyl)xanthen-3-yl]benzoic Acid; 5(6)-FAM-O-Acetic Acid; Fluorescein Carboxymethyl Ether; 5(6)-Carboxyfluorescein Carboxymethyl Ester; Fluorescein-O-CH2-COOH; Reactive Fluorescein Derivative
EINECS	Contact for details

Quality Control

Our Fluorescein-O'-Acetic Acid is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and diagnostic applications. Certificates of Analysis (COA) detailing batch-specific results are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Area %)
Loss on Drying	≤ 2.0 %
Heavy Metals	≤ 20 ppm

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