DYESTUFF 1.CAS NO.6459-70-7 2.STRENGTH:400% 3.APPEARANCE:YELLOW POWDER 1.CAS No.: 6459-70-72.STRENGTH:400%3. DYESTUFF FOR SILK ... Acid dyes products list in the following:YELLOW 59, 67, 117, 128, 158:1, 199, 232ORANGE 33, 88, 95, 156RED 57 ... 54, 90BLACK 24, 60, 168, 172, 194, 220 ACID Yellow 117 CAS NO.6459-70-7