Eosine spirit soluble by Research Lab Fine Chem Industries is a high grade reagent. Also known as ethyl eosin, this is a form of eosin, a fluorescent acidic compound. The reagent is available as a powder which is soluble in alcohol. While it is stable under general conditions, this reagent is incompatible with strong oxidizing agents. CAS No.: 6359-05-3 Quantity Provided: 25 gm per bottle Molecular formula: C22H11Br4KO5 Molecular weight: 714.03 Assay: 95 % Eosine has a variety of applications in chemical and biological sectors. This compound finds several applications in the synthesis of various organic derivatives. Eosin is used to stain cells and tissues as a biological stain. Ethyl eosin can be utilized instead of Eosin Y ws to counterstain alum hematoxylin in the Hematoxylin and Eosin method. It can further be used in the Stoval and Black method for demonstrating Negri bodies in the central nervous system of rabid animals. This reagent is suitable for the industrial synthesis of products and research applications.