dye|World dye variety

Name:C.I.Acid Brown 4,C.I.14805

Molecular Structure: Single azo class

C.I.Acid Brown 4,C.I.14805,CAS 5858-51-5,365.34,C16H12N3NaO4S,Acid Brown 2R,Acid Brown R

Molecular Formula:C₁₆H₁₂N₃NaO₄S

Molecular Weight: 365.34

CAS Registry Number:5858-51-5

Manufacturing Methods : N-(4-aminophenyl)acetamide diazo, and 5-Hydroxynaphthalene-1-sulfonic acid coupling, and then remove acetyl hydrolysis.

Properties and Applications:  red light brown. Soluble in water for red light brown, soluble in ethanol for yellow light brown. The strong sulfuric acid for wine red, dark blue, diluted to the red orange. Strong hydrochloric acid solution to join a brown orange precipitation; Add thick sodium hydroxide solution for palm orange.

List of Suppliers:

Acid Brown 2R,Acid Brown R

Hangzhou Xiasha Hengsheng (Sunshine) Chemicals Co.,Ltd.

Acid Brown ( European Colour (Pigments) Ltd )

Lerui Acid Brown ( Rosi Chemical Co Ltd )

Multacid Brown R( Multicrom SA )

Vilmacid Brown AF( Vilmax SA )