Description

3',6'-Diethoxyfluorescein is a high-purity, fluorescent dye derivative of fluorescein, characterized by its ethoxy substitutions which modify its spectral properties and solubility profile. This compound is valued for its role as a key intermediate and active tracer in advanced analytical and diagnostic applications, offering reliable performance and batch-to-batch consistency. It is essential for manufacturers and researchers in the life sciences, analytical chemistry, and specialty chemical sectors who require precise fluorescent labeling and detection capabilities.

Application

• Fluorescent Tracer and Labeling Agent: Used in environmental studies, hydrological tracing, and industrial process monitoring.
• Biochemical Research: Acts as a precursor or intermediate for synthesizing more complex fluorescent probes and conjugates for cell biology.
• Analytical Chemistry Standard: Serves as a reference standard in chromatographic methods (HPLC, TLC) and spectroscopic analysis for method development and validation.
• Diagnostic Reagent Manufacturing: Employed in the production of components for clinical diagnostic kits and assays.
• Photodynamic Therapy Research: Investigated as a potential photosensitizer or building block in the development of novel therapeutic agents.
• Material Science: Incorporated into polymers or coatings to create light-sensitive or fluorescent materials for sensors and security inks.

Basic Information

Product Name	3',6'-Diethoxyfluorescein
CAS No.	21934-70-3
Molecular Formula	C24H20O7
Molecular Weight	420.41 g/mol
Synonyms	3',6'-Diethoxyfluoran; Diethoxyfluorescein; 2-(3,6-Diethoxy-2,7-dihydroxy-3H-xanthen-9-yl)benzoic acid; 3',6'-Diethoxy-3H-spiro[isobenzofuran-1,9'-xanthene]-3-one; Fluorescein 3',6'-diethyl ether; C.I. 45350:2; Solvent Yellow 94; NSC 6178
EINECS	Contact for details

Quality Control

Our 3',6'-Diethoxyfluorescein is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity assessment, identity confirmation by IR and NMR spectroscopy, and checks for residual solvents and heavy metals. We provide a detailed Certificate of Analysis (COA) with every shipment, ensuring traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive (store away from light). Keep the container tightly sealed in a dry environment to maintain stability.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%

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