DYESTUFF 1.CAS NO.12234-99-0 2.STRENGTH:150% 3.APPEARANCE:RED POWDER 1.CAS No.: 12234-99-02.STRENGTH:150%3. DYESTUFF FOR SILK ... , 260, 277, 324, 350BROWN 21, 28GREEN 25, 27VIOLET 54, 90BLACK 24, 60, 168, 172, 194, 220 ACID Red 131 CAS NO.12234-99-0