Basic Violet 1, commonly known as Methyl Violet, is a classic cationic dye that produces a deep, bluish-violet shade. In seed treatment, its cationic nature is a key advantage, allowing it to form a strong bond with the anionic binders and polymers used in film coatings. This results in a very strong and vibrant colouration. Its exceptional tinctorial strength makes it a highly economical choice for achieving a vivid violet colour.