Description

Disodium 2,7-Fluorenedisulfonate is an organic salt derivative of fluorene, characterized by its two sulfonate groups which impart excellent water solubility and anionic character. This compound serves as a versatile intermediate and functional additive in advanced material synthesis and analytical chemistry. It is particularly valuable for industries requiring precise chemical modification, such as specialty polymer production, dye and pigment manufacturing, and as a key component in electrochemical and photochemical research applications.

Application

• Polymer & Material Science: Acts as a monomer or functional additive for synthesizing water-soluble, anionic, or sulfonated polymers, including polyelectrolytes and ion-exchange resins.
• Dye & Pigment Intermediates: Serves as a crucial building block for creating fluorescent dyes, optical brighteners, and specialized pigments due to the fluorene backbone.
• Electrochemical Research: Utilized in the development of battery electrolytes, fuel cell components, and conductive materials where sulfonate groups enhance ionic conductivity.
• Analytical Chemistry & Biochemistry: Functions as a fluorescent probe, tracer, or a standard in chromatographic and spectroscopic methods (HPLC, fluorescence spectroscopy).
• Surface Treatment & Coatings: Employed as a wetting agent, dispersant, or anionic surfactant in coating formulations to improve stability and application properties.
• Pharmaceutical & Life Science Research: Used as a synthetic intermediate or a tag in the development of diagnostic agents and research chemicals.

Basic Information

Product Name	Disodium 2,7-Fluorenedisulfonate
CAS No.	53091-78-4
Molecular Formula	C₁₃H₈Na₂O₆S₂
Molecular Weight	382.29 g/mol
Synonyms	2,7-Fluorenedisulfonic Acid Disodium Salt; Disodium Fluorene-2,7-disulfonate; 2,7-Fluorenedisulfonic Acid Sodium Salt; 9H-Fluorene-2,7-disulfonic Acid, Disodium Salt; Sodium 2,7-Fluorenedisulfonate; Fluorene-2,7-disulfonic Acid Disodium Salt; 2,7-Disulfofluorene Disodium Salt
EINECS	Contact for details

Quality Control

Our Disodium 2,7-Fluorenedisulfonate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistency, meeting the specifications required for research and industrial applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and quality assurance.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%
pH (1% Solution)	6.0 - 8.0

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