1-hexyl-1H-pyrazole-4,5-diamine hemisulfate, as represented in formula (IX-a), and its use in oxidative dyeing composition. This pyrazole salt was found to combine good stability as raw material and good shade intensity with a range of common couplers when formulated in hair dyeing composition.
1-己基-1H-
吡唑-4,5-二胺
硫酸半盐,如式(IX-a)所示,并其在氧化
染料组合物中的应用。这种
吡唑盐在头发
染料组合物中配方时,发现它既具有良好的原料稳定性,又能与一系列常见的
偶联剂结合,呈现出良好的色泽强度。