Eosin 0.5%, aqueous is a specialized staining solution used in histology and cytology. Eosin is a red dye that stains mainly acidic (or eosinophilic) cellular components such as the cytoplasm of cells, collagen fibers, and red blood cells. When combined with other dyes, such as hematoxylin in H&E staining, eosin enables differential staining of tissue preparations to visualize different cell structures and tissue types.

This 0.5% aqueous eosin solution is a standardized staining solution suitable for a variety of histological and cytological applications. It is stable and ready-to-use, making it easy to use and improving the reproducibility of staining results.

Typical applications of Eosin include staining tissue sections for light microscopy, differentiating cells in cytology slides, and assessing tissue composition in medical diagnostics and research.