Description

Diiodofluorescein is a halogenated derivative of fluorescein, valued for its role as a specialized dye and analytical reagent. Its significance lies in its ability to act as a sensitive colorimetric and fluorescent indicator in various scientific and industrial processes. This compound is primarily needed by research laboratories, diagnostic kit manufacturers, and quality control sectors within the chemical and pharmaceutical industries.

Application

• Biochemical Staining and Labeling: Used as a fluorescent tracer or stain in microscopy and histology for visualizing cellular structures.
• Analytical Chemistry Reagent: Serves as an indicator in titration methods, particularly in precipitation titrations involving silver or other halides.
• Diagnostic Agent Precursor: Employed in the synthesis and development of contrast agents or diagnostic dyes for medical imaging.
• Photodynamic Therapy Research: Investigated as a potential photosensitizer in research related to light-activated cancer treatments.
• Laser Dye and Sensor Development: Utilized in the research of tunable dye lasers and the fabrication of chemical sensors due to its photophysical properties.
• Photographic and Optical Applications: Functions as a sensitizer in specific photographic processes or optical filters.

Basic Information

Product Name	Diiodofluorescein
CAS No.	38577-97-8
Molecular Formula	C20H10I2O5
Molecular Weight	584.10 g/mol
Synonyms	4',5'-Diiodofluorescein; DIF; 2-(3,4-Diiodo-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid; Solvent Red 73; C.I. 45440; Diiodofluoresceine; 4,5-Diiodofluorescein
EINECS	Contact for details

Quality Control

Our Diiodofluorescein is produced and tested under a rigorous quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and identification. For specific purity grades or custom specifications, please contact our technical team.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container sealed to minimize exposure to moisture and atmospheric contaminants.

Specification

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

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