Description

Rose Bengal, Methyl Ester is a chemically modified derivative of the xanthene dye Rose Bengal, specifically esterified with methanol. This modification enhances its lipophilicity and alters its spectral properties, making it a valuable tool in specialized photochemical and biological research applications. It is primarily sought by researchers and manufacturers in the life sciences, diagnostics, and advanced material sectors for its unique photodynamic and staining capabilities.

Application

• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer for targeted cellular damage in cancer and antimicrobial studies.
• Biochemical Staining & Labeling: Used as a selective stain for proteins, cellular components, or in histological applications due to its distinct color and binding properties.
• Polymer & Material Science: Acts as a photoinitiator or a functional dye in the development of light-sensitive polymers, coatings, and advanced materials.
• Analytical Chemistry: Employed as a chromogenic agent or probe in spectrophotometric assays and sensor development.
• Diagnostic Reagent Formulation: A key component in the formulation of specific diagnostic kits and reagents for laboratory use.
• Organic Synthesis Intermediate: Serves as a building block for the synthesis of more complex dye molecules and conjugated compounds.

Basic Information

Product Name	Rose Bengal, Methyl Ester
CAS No.	115546-28-6
Molecular Formula	C21H2Cl4I4Na2O5
Molecular Weight	1017.64 g/mol
Synonyms	Rose Bengal Methyl Ester; Methyl Rose Bengal; 4,5,6,7-Tetrachloro-2',4',5',7'-tetraiodofluorescein Methyl Ester; Acid Red 94 Methyl Ester; C.I. 45440 Methyl Ester; Bengal Rose Methyl Ester; Rose Bengal Me ester
EINECS	Contact for details

Quality Control

Our Rose Bengal, Methyl Ester is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, spectroscopic identification (IR, UV-Vis), and residual solvent analysis to ensure it meets rigorous research-grade specifications. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Dark red to violet powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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