C.I. Direct blue 49

Product Name
C.I. Direct blue 49
CAS No.
6426-73-9
Chemical Name
C.I. Direct blue 49
Synonyms
Direct Blue 49;C.I. Direct blue 49;C.I.Direct Blue 49:C.I.22540;2,7-Naphthalenedisulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4,5-dihydroxy-, tetrasodium salt
CBNumber
CB62497680
Molecular Formula
C32H23N4NaO16S4
Formula Weight
870.78
MOL File
6426-73-9.mol
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C.I. Direct blue 49 Property

EPA Substance Registry System
C.I. Direct Blue 49 (6426-73-9)
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Hazard and Precautionary Statements (GHS)

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C.I. Direct blue 49 Chemical Properties,Usage,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid (2 Moore) coupled.

Properties and Applications

dark red light blue and red light navy. Soluble in water for deep purple, soluble in ethanol for purple. The strong sulfuric acid for green light blue, for purple diluted. The dye solution to join strong hydrochloric acid for deep blue purple; Add sodium hydroxide solution for dark purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 5 3-4 1-2 2 2-3

C.I. Direct blue 49 Preparation Products And Raw materials

Raw materials

Preparation Products

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C.I. Direct blue 49 Suppliers

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6426-73-9, C.I. Direct blue 49Related Search:

1-Naphthalenesulfonic acid, 6,6'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-hydroxy-, disodium salt Azoform Brilliant Blue G Direct Blue 45 5-Amino-3-[[4'-[[6-amino-1-hydroxy-5-[(4-nitro-2-sulfophenyl)azo]-3-sulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxy-2,7-naphthalenedisulfonic acid tetrasodium salt 5-Amino-3-[[4'-[(6-amino-1-hydroxy-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]-4-hydroxynaphthalene-2,7-disulfonic acid disodium salt PYRROLE BLUE amanil developed black bhsw Direct Blue 5 4-Amino-6-[[4'-[(7-amino-1-hydroxy-3-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-3-[(2,5-dichlorophenyl)azo]-5-hydroxy-2,7-naphthalenedisulfonic acid trisodium salt

  • 2,7-Naphthalenedisulfonic acid, 3,3'-((1,1'-biphenyl)-4,4'-diylbis(azo))bis(4,5-dihydroxy-, tetrasodium salt
  • C.I. Direct blue 49
  • C.I.Direct Blue 49:C.I.22540
  • Direct Blue 49
  • 6426-73-9