Description

Diiodofluorescein is a halogenated derivative of fluorescein, a key organic dye and chemical intermediate. This compound is valued for its specific spectral properties and reactivity, making it a versatile building block in advanced chemical synthesis. It is primarily utilized in research and development, analytical chemistry, and the production of specialized dyes and biological stains for industrial and diagnostic applications.

Application

• Analytical Chemistry Reagent: Used as a fluorescent probe or indicator in various spectrophotometric and chromatographic methods.
• Biochemical Staining: Serves as a precursor or component in stains for microscopy and cellular imaging.
• Organic Synthesis Intermediate: A key building block for synthesizing more complex iodinated dyes and fluorescent markers.
• Photographic Sensitizer: Employed in specialized photographic and photochemical processes.
• Research & Development: Used in academic and industrial R&D for studying dye properties, reaction mechanisms, and material science.
• Diagnostic Agent Precursor: Potential use in the development of contrast agents or diagnostic kits.

Basic Information

Product Name	Diiodofluorescein
CAS No.	33239-19-9
Molecular Formula	C20H10I2O5
Molecular Weight	584.10 g/mol
Synonyms	4',5'-Diiodofluorescein; DII; 2-(3,4-Diiodo-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid; 3',6'-Dihydroxy-4',5'-diiodospiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; Fluorescein, 4',5'-diiodo-; C.I. 45425; Solvent Red 73
EINECS	Contact for details

Quality Control

Our Diiodofluorescein is produced and tested under a rigorous quality management system. Each batch is analyzed to ensure it meets high-purity standards suitable for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

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 incompatible materials.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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