Description

Fluorescein Diester CAS NO 75296-16-1 is a key organic intermediate and a derivative of the widely used fluorescent dye, fluorescein. This compound is valued for its role as a versatile building block in the synthesis of advanced fluorescent probes, sensors, and labeling reagents. It is essential for research and development in life sciences, analytical chemistry, and the production of specialized diagnostic materials.

Application

• Synthesis of high-performance fluorescent probes and molecular sensors for bioimaging and cellular analysis.
• Production of fluorescent labeling reagents for proteins, antibodies, and nucleic acids in diagnostic assays.
• Manufacturing of advanced dye intermediates for specialty pigments and security inks.
• Key precursor in the development of photostable fluorescent markers for flow cytometry and microscopy.
• Research chemical for studying photophysical properties and developing new optoelectronic materials.
• Intermediate for polymer-bound fluorescent tags used in material science and surface modification.

Basic Information

Product Name	Fluorescein Diester
CAS No.	75296-16-1
Molecular Formula	C24H16O7
Molecular Weight	416.38 g/mol
Synonyms	Fluorescein Diacetate; 3',6'-Diacetylfluorescein; 2-(6-Acetyloxy-3-oxo-3H-xanthen-9-yl)benzoic acid acetate; Fluorescein O,O'-diacetate; Diacetylfluorescein; FDA (in dye chemistry context); Fluorescein diacetate ester; 3,6-Diacetoxyfluoran
EINECS	Contact for details

Quality Control

Our Fluorescein Diester is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity suitable for research and synthesis applications. Each lot is analyzed using advanced chromatographic and spectroscopic techniques. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat and incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Heavy Metals	≤ 20 ppm
Residual Solvents	Complies with ICH guidelines

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