2',3-dimethyl-4-amino-4',5-disulfoazobenzene

Preparation

2-Methyl-4-(o-tolyldiazenyl)benzenamine?disulfonated?.

Properties and Applications

red light yellow. Soluble in water for green light yellow, slightly soluble in alcohol. The strong sulfuric acid to golden yellow, red orange for diluted. In water solution to join strong hydrochloric acid into a red glow orange; With strong sodium hydroxide solution for green light yellow. Apply to wool and silk dyeing and printing.