2-Naphthalenesulfonic acid, 8-[(4-aminophenyl)azo]-5-[[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-7-sulfo-1-naphthalenyl]azo]-, disodium salt

2-Naphthalenesulfonic acid, 8-[(4-aminophenyl)azo]-5-[[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-7-sulfo-1-naphthalenyl]azo]-, disodium salt Chemische Eigenschaften,Einsatz,Produktion Methoden

• synthetische

  2-(4-Aminophenylamino)-2-oxoacetic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, product diazo again, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base.

• Properties and Applications

  red light blue and red light navy. Soluble in water for violet black, soluble in ethanol for purple. In the dark for the strong sulfuric acid, diluted the color purple for red light to brown. The dye solution to join strong hydrochloric acid purple brown precipitation; Add thick sodium hydroxide solution for Red sauce, precipitation.
  

  Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
  				Fading	Stain	Fading	Stain
  ISO	5	5	4-5	4		4

2-Naphthalenesulfonic acid, 8-[(4-aminophenyl)azo]-5-[[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-7-sulfo-1-naphthalenyl]azo]-, disodium salt Upstream-Materialien And Downstream Produkte