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tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonate

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tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonate Basic information

Product Name:
tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonate
Synonyms:
  • 7-[[4-[(2-Hydroxy-3,6-disulfo-1-naphtyl)azo]-1-naphtyl]azo]-1,3-naphthalenedisulfonic acid tetrasodium salt
  • C.I.Acid Black 3
  • tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonate
  • 4-[[4-[(6,8-disulfonatonaphthalen-2-yl)diazenyl]naphthalen-1-yl]hydrazinylidene]-3-oxonaphthalene-2,7-disulfonate
  • 7-[[4-[(2-oxido-3-sulfo-6-sulfonatonaphthalen-1-yl)diazenyl]naphthalen-1-yl]diazenyl]naphthalene-1,3-disulfonate
  • (4E)-4-[[4-[(6,8-disulfonatonaphthalen-2-yl)diazenyl]naphthalen-1-yl]hydrazinylidene]-3-oxonaphthalene-2,7-disulfonate
  • tetrasodium,4-[[4-[(6,8-disulfonatonaphthalen-2-yl)diazenyl]naphthalen-1-yl]hydrazinylidene]-3-oxonaphthalene-2,7-disulfonate
  • C.I.Acid Black 3:C.I.27260
CAS:
4197-00-6
MF:
C30H21N4NaO13S4
MW:
796.74
Mol File:
4197-00-6.mol
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tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonate Usage And Synthesis

Preparation

7-Aminonaphthalene-1,3-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, coupled with 3-Hydroxynaphthalene-2,7-disulfonic acid.

Properties and Applications

the light black. Soluble in water for purple, slightly soluble in alcohol. The strong sulfuric acid for gray, diluted into purple. In water solution to join strong hydrochloric acid for blue; Add thick sodium hydroxide solution to blue.

Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 6 3 4 3-4 4 4 3

tetrasodium (4Z)-4-[[4-(6,8-disulfonatonaphthalen-2-yl)diazenylnaphthalen-1-yl]hydrazinylidene]-3-oxo-naphthalene-2,7-disulfonateSupplier

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