Check the listing for details. Basic fuchsine, Basic violet 14, CAS: 632-99-5, Fuchsin basic, Fuchsin. Condition: Brand New. Listed at 18.46 USD. Basic Fuchsin (CAS 632-99-5)Alternate Names: Basic Red 9; Magenta O Application: Basic Fuchsin is a flourescent dye used for stainning and for the Ziel-Neelson staining method CAS Number: 632-99-5Molecular Weight:337.86 g/mol Molecular Formula: C20H19N3•HCl Basic Fuchsin is a triphenylmethane dye, chemically known as magenta II or rosaniline hydrochloride. It is used in microbiological and histological staining as it has a strong affinity for nucleic acids and cellular components, making it invaluable in the visualization of cell structures under a microscope. Basic Fuchsin is extensively used in the Gram staining procedure, a fundamental technique for bacterial classification and identification. Additionally, Basic Fuchsin is used in other histological stains, such as the Schiff reagent for the periodic acid-Schiff reaction, which is essential for identifying polysaccharides such as glycogen in tissues.