Direct Brown 184
Name:C.I.Direct Brown 184,C.I.21500
Molecular Structure: Double azo class
Molecular Formula:C19H19N8NaO3S
Molecular Weight: 462.46
CAS Registry Number:6441-66-3
Manufacturing Methods : 3,5-Diamino-4-methylbenzenesulfonic acid double nitriding, and Benzene-1,3-diamine (2 Moore) coupled.
Properties and Applications: brown. Soluble in water for red light yellow to orange red, and adequate soluble in alcohol. The strong sulfuric acid for olive brown, diluted red for yellow. Dye with strong hydrochloric acid solution for orange brown, have precipitation; Add thick sodium hydroxide solution discoloration.
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