Erythrosine B by Research Lab Fine Chem Industries is a high grade reagent. Also known as Red No. 3, this organoiodine compound is a derivative of fluorone. The reagent is available as a powder which is soluble in water. It has a melting point of 142 to 144 C. While it is stable under general conditions, this reagent is incompatible with strong oxidizing agents. CAS No.: 16423-68-0 Quantity Provided: 25 gm per bottle Molecular formula: C20H6I4Na2O5 Molecular weight: 879.84 Assay: 90 %Erythrosine B has a variety of applications in chemical and biological sectors. This compound finds several applications in the synthesis of various organic derivatives. Erythrosine is majorly used as food colouring. It is similarly used in printing inks and as a biological stain in plant anatomy. It also finds applications as a dental plaque disclosing agent and a sensitizer for orthochromatic photographic films. Erythrosine B is also used as a dye in the determination of cell viability. This reagent is suitable for the industrial synthesis of products and research applications.