Acid Brown 454

Preparation

3-Amino-4-hydroxybenzenesulfonamide diazo, respectively with the N-(7-hydroxynaphthalen-1-yl)acetamide and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling, and then will product into 1:2 chromium complex.

Properties and Applications

brown.