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C.I. Direct blue 49

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C.I. Direct blue 49 Basic information
Product Name:C.I. Direct blue 49
Synonyms: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
CAS:6426-73-9
MF:C32H23N4NaO16S4
MW:870.78
EINECS:
Product Categories:
Mol File:6426-73-9.mol
C.I. Direct blue 49 Structure
C.I. Direct blue 49 Chemical Properties
EPA Substance Registry SystemC.I. Direct Blue 49 (6426-73-9)
Safety Information
MSDS Information
C.I. Direct blue 49 Usage And Synthesis
Preparation4-(4-Aminophenyl)benzenamine double nitriding, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid (2 Moore) coupled.
Properties and Applicationsdark 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 materialsBenzidine-->1,8-Dihydroxynaphthylene-3,6-disulfonic acid
Tag:C.I. Direct blue 49(6426-73-9) Related Product Information
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