... : PYOKTANIN BLUE;S NO 785;VIOLET 7B;BASIC VIOLET 3;BRILLIANT VIOLET;CALCOZINE VIOLET 6BN;GRAM STAIN NO 1;GRAM STAIN CAS: 548-62 ... fastness was 2-3 grade acrylic fiber. Usage: 1. Basic violet 5BN and can be used for dyeing silk, cotton, hemp ... leather, paper, grass products, is Long Danzi pharmaceutical industry (gentian violet) is the main raw material. 2. Mainly used in the ...