Molecular Formula C₂₅H₃₀ClN₃, molecular weight 408.00. Also known as crystal violet or methyl viologen, the scientific name for methyl chloride six magenta base, is a basic dyes, dark purple with a metallic sheen to the massive material. Slightly soluble in water, soluble in alcohol, chloroform, ethyl ether insoluble. Medicine for local antibiotics, antibacterial drugs. Its aqueous solution (10 g / L) that is commonly used by anthrax. The industrial dye used, it is able to wool, silk and tannic processed cotton products dyed purple; Also used with paper, leather and ink, printing color, such as carbon paper. From N - dimethyl aniline, phenol, salt and copper sulfate were obtained after the heat.