Azure C by Research Lab Fine Chem Industries is a high grade reagent. Also known as N-methylthionine, this is a dye. The reagent is available as powder which is soluble in water and sparingly soluble in ethanol. While it is stable under general conditions, it is incompatible with strong oxidising agents. For best performance, it is advised that this dye preparation be used before expiry. CAS No.: 531-57-7 Quantity Provided: 25 gm per bottle Molecular formula: C13H12ClN3S Molecular weight: 277.77 Assay: minimum 40 %Azure C has a variety of applications in chemical and biological sectors. This reagent is used in various dye preparations in biological staining applications. This dye is utilized in microscopic or electron microscopic examination of cells and tissues to give contrast, as well as to highlight particular features of interest, such as nuclei and cytoplasm. This reagent is suitable for industrial synthesis of products and research applications.