Product name: 4,5-Diamino-1-(2-Hydroxyethyl)Pyrazole sulfate (P5) CAS No.: 155601-30-2 Specifications: Appearance: pink to off-white crystalline powder Purity: 98% min Ash: 0.5% max Moisture: 0.5% max Iron content: 40PPM max Applications: Hair DyeIf you need more information,please contact us.Thanks!