Methyl Violet 2B/ Methyl Violet 5BN power or crystal. It can be used for dyeing silk, wool, leather, paper and so on. Can be made into color lake,pesticide colorant and stamp pad ink.
Rhodamine B is one very popular basic dye. It can be used for dyeing paper,silk,acrylic, leather, wood, plastic, stained glass and stationery such as colored pens, crayons and so on.