1) Hair Dye Raw Material 2) Appearance: off-white powder 3) ISO9001 Product name:N,N-Bis(2-Hydroxyethyl)-P-Phenylenediamine sulfateCAS No.:54381-16-7Specifications:Appearance: off-white powder Purity: 98% min Iron: 20PPM max Ash: 0.5% max Moisture: 5.0% max Applications:Hair DyeIf you need more information,please contact us.Thanks! N,N-Bis(2-Hydroxyethyl)-P-Phenylenediamine sulfate hair dye