Evans blue by Research Lab Fine Chem Industries is a high grade reagent. Also known as T-1824, this is an azo dye. The reagent is available as a blue powder which is soluble in water. This compound fluoresces with excitation peaks at 470 and 540 nm and an emission peak at 680 nm wavelengths. While it is stable under general conditions, this reagent is incompatible with strong oxidizing agents. CAS No.: 314-13-6 Quantity Provided: 5 gm per bottle Molecular formula: C34H24N6Na4O14S4 Molecular weight: 960.81 Assay: 75 %Evans blue has a variety of applications in chemical and biological sectors. This reagent finds applications in the organic synthesis of various derivatives. Evans blue has a very high affinity for serum album, which is utilized in estimating the proportion of body water contained in blood plasma. It has additionally been used as a viability assay due to its penetration into non-viable cells. Furthermore, Evans blue has been used to evaluate the permeability of the bloodbrain barrier to macromolecules. This reagent is suitable for the industrial synthesis of products and research applications.