Description

Eosin Diacetate is a synthetic derivative of the xanthene dye Eosin Y, widely recognized for its utility as a vital staining agent and fluorescent probe. Its primary value lies in its enhanced lipophilicity and staining properties compared to its parent compound, making it a critical reagent in specialized histological and cytological applications. This product is essential for research and diagnostic laboratories in the life sciences, pharmaceutical development, and biotechnology sectors requiring precise cellular visualization.

Application

• Histological Staining: Used as a counterstain in combination with hematoxylin for enhanced contrast in tissue section microscopy.
• Cytological Analysis: Employed for staining cytoplasmic structures and specific organelles in fixed cell preparations.
• Fluorescence Microscopy: Acts as a fluorescent marker in certain assay protocols due to its derivatized xanthene structure.
• Biomedical Research: Utilized as a tracer or dye in experimental protocols studying cell permeability and membrane integrity.
• Diagnostic Reagent Formulation: A key component in the preparation of specialized staining kits for clinical pathology.

Basic Information

Product Name	Eosin Diacetate
CAS No.	7284-92-6
Molecular Formula	C26H18Br4O7
Molecular Weight	795.94 g/mol
Synonyms	Eosin B diacetate; Eosin diacetate salt; 2',4',5',7'-Tetrabromo-3',6'-dihydroxyspiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3,6'-diacetate; Eosin Y diacetate; Bromoeosin diacetate; C.I. 45380 diacetate; Eosin bluish diacetate
EINECS	Contact for details

Quality Control

Our Eosin Diacetate is manufactured under a quality management system and undergoes rigorous analytical testing to ensure batch-to-batch consistency and purity suitable for research and diagnostic applications. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as identity, assay, and impurity profile. We adhere to relevant industry standards for fine chemicals and laboratory reagents.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Red to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0 %
Solubility	Soluble in DMSO, acetone; sparingly soluble in water

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