Basic violet 3 is Basic violet 5BN, Methyl violet 5BN, Gentian violet, Crystal violet, ... violet 3 for ink ,textile ,et 1) Basic violet 3 is Basic violet 5BN, Methyl violet 5BN, Gentian violet, Crystal violet ... used for leather, paper, straw products, dyeing, the pharmaceutical Industry is the main raw material of gentian violet.