4-尊龙凯时最新

product name：1-amino-2-naphthol-4-sulfonic acid

molecular formula：c₁₀h₈no₄s

molecular weight：238.2404

structural formula：

chemical abstracts： 4-amino-3-hydroxy-1-naphthalenesulfonic acid

cas number：[116-63-2]

nature :the finished product is light purple gray paste, insoluble in cold water, ethanol, ethyl ether, soluble in hot water. product would be oxidized in the air,then the appearance into a red rose with the nature of the aromatic sulfonic acid and aromatic amine.

purpose：used for making acid mordant dyes and acid complexing dye

quality index
appearance：gray paste
content：≥35% 
swimming ion：≤6%