【English Name】1-amino-8-naphthol-3,6-disulfonic acid
【Structure or formula】
【CAS No】. 90-20-0
【Relative molecular weight】 319
【Appearance】 Colorless crystals
【Soluble】
Slightly soluble in cold water, soluble in soda ash and caustic soda in alkaline solution。
【Uses】
H - acid mainly use for the production of acid, direct and reactive dyes, such as acid magenta 6 b, acid
red G, acid black
10 b, direct black, reactive brilliant red K – 2BP, reactive purple K - 3R, reactive blue K-R, etc, it is more than 90 kinds of, such as the dye used in wool spinning, dyeing of cotton fabric. It is also
can be used in
the production of drugs.