Description

Rose Bengal Bis(Triethylammonium) Salt is a chemically modified, water-soluble derivative of the classic xanthene dye Rose Bengal, offering enhanced utility in aqueous-based systems. This compound is valued for its high photosensitivity and serves as a crucial photoinitiator and photosensitizer in advanced material science and biochemistry. It is primarily sought by manufacturers and researchers in the photopolymerization, biomedical research, and diagnostic reagent sectors.

Application

• Photoinitiator for Polymerization: Used in UV-curable inks, coatings, and adhesives to initiate cross-linking reactions upon light exposure.
• Biomedical Research & Staining: Employed as a fluorescent stain for cell viability assays, protein detection, and histological applications.
• Antimicrobial Photodynamic Therapy (aPDT): Acts as a photosensitizer to generate reactive oxygen species for disinfecting surfaces or treating localized infections.
• Diagnostic Reagent Manufacturing: A key component in the formulation of specific diagnostic kits and biosensors.
• Material Science Research: Utilized in the development of light-responsive "smart" materials and organic photovoltaics.
• Analytical Chemistry: Serves as a tracer or indicator in certain spectrophotometric and fluorometric analytical methods.

Basic Information

Product Name	Rose Bengal Bis(Triethylammonium) Salt
CAS No.	91491-51-9
Molecular Formula	C~46~H~62~I~4~N~2~O~5~
Molecular Weight	~1297.63 g/mol
Synonyms	Rose Bengal Di(triethylammonium) Salt; 4,5,6,7-Tetrachloro-2',4',5',7'-tetraiodofluorescein Bis(triethylammonium) Salt; Acid Red 94 Bis(triethylammonium) Salt; Water-soluble Rose Bengal Salt; Rose Bengal Ammonium Salt (derivative); C.I. 45440; Bengal Rose B; PhotoRose Bengal
EINECS	Contact for details

Quality Control

Our Rose Bengal Bis(Triethylammonium) Salt is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and performance consistency. A Certificate of Analysis (COA) detailing specifications such as assay (HPLC), absorbance profile, and moisture content is provided with every shipment to guarantee traceability and compliance with your project requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container should be kept in a low-humidity environment and opened under dry conditions to prevent moisture absorption, which can affect performance.

Specification

Item	Specification
Appearance	Dark red to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Absorbance (λmax)	~548-552 nm (in suitable solvent)
Loss on Drying	≤ 5.0 %
Heavy Metals	≤ 20 ppm
Solubility (Water)	Freely soluble

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