Description

Difluorescein Disulfide is a specialized organic compound belonging to the fluorescein family, characterized by its disulfide bridge linking two fluorescein moieties. This structure makes it a valuable precursor and building block for synthesizing advanced fluorescent probes and biochemical reagents. It is primarily utilized by research institutions and manufacturers in the life sciences and analytical chemistry sectors for developing sensitive detection assays and labeling technologies.

Application

• Fluorescent Probe Synthesis: A key intermediate for creating thiol-reactive fluorescent labels and sensors used in bioimaging and cellular studies.
• Bioconjugation Chemistry: Used to develop cross-linking agents and labeled antibodies or proteins for diagnostic assays and flow cytometry.
• Biochemical Research: Serves as a substrate or precursor in enzymatic activity studies and redox state detection within biological systems.
• Material Science: Can be incorporated into polymers or surfaces to create light-sensitive or diagnostic materials.
• Analytical Reagent Manufacturing: Employed in the production of high-purity reagents for HPLC, spectroscopy, and other analytical techniques.

Basic Information

Product Name	Difluorescein Disulfide
CAS No.	84461-59-6
Molecular Formula	C40H22O10S2
Molecular Weight	726.73 g/mol
Synonyms	Bis(fluorescein) disulfide; 2,2'-Disulfanediylbis(3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-6-carboxylic acid); Fluorescein disulfide; Difluorescein disulphide; 6,6'-Dithiobis(3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-2-carboxylic acid); FDSS; DFD
EINECS	Contact for details

Quality Control

Our Difluorescein Disulfide is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity assessment and spectroscopic methods for structural confirmation, to ensure it meets the high standards required for research and manufacturing applications. Certificates of Analysis (COA) with detailed batch-specific data are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (typically 15-25°C). The product is light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95%
Loss on Drying	≤ 2.0 %
Heavy Metals	≤ 20 ppm

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