Malachite green

Malachite Green is a synthetic cationic triphenylmethane organic dye widely used in laboratory, industrial, and research applications. Known for its vivid coloration and strong staining properties, Malachite Green is commonly employed in microscopy, biological staining, textile dyeing, and analytical procedures. Malachite Green chloride may be used as an analytical reference compound to investigate its carcinogenic nature and the analyte detection, food color quality, and safety control. It has efficacy for treating fungal, bacterial, and parasitic infections and is also employed in paper, textile, acrylic industries. It is used as a biological stain for microscopic analysis of cell biology and tissue samples. In the Gimenez staining method, basic fuchsin stains bacteria red or magenta, and malachite green is used as a blue-green counterstain. Malachite green is also used in endospore staining, since it can directly stain endospores within bacterial cells; here a safranin counterstain is often used. Malachite green is a part of Alexander's pollen stain. Malachite green is cytotoxic to HEp-2 cells and Caco-2 human colorectal adenocarcinoma cells. It reduces fungal infection in, and increases hatching rates of, rainbow trout eggs. The maximum absorbance wavelength is 621 nm.