With the CAS registry number 12239-06-4, C.I. Acid Red 215 is also named as Neutral Pink BL. The product's categories are Dye; Acid Dye; Neutral Dye. Besides, it is claret-colored powder.
Preparation and Uses of C.I. Acid Red 215: please diazotize 2-Amino-5-nitrophenol. And then put the resultant to couple with 3-Methyl-2-pyrazolin-5-one. At last, please put the resultant to complex with Salicylic acid. You will obtain this chemical after filtration and drying. Moreover, this product is used for dyeing of silk, nylon, vinylon and wool. It also can be used for direct printing of wool, silk and nylon fabrics.
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