Direct blue 26, trisodium salt

Product Name
Direct blue 26, trisodium salt
CAS No.
7082-31-7
Chemical Name
Direct blue 26, trisodium salt
Synonyms
Direct Blue 26;C.I.Direct Blue 26:C.I.31930;Direct blue 26, trisodium salt;C.I. Direct blue 26, trisodium salt;1-Naphthalenesulfonic acid, 3-((7-((4'-((1,8-dihydroxy-4-sulfo-2-naphthalenyl)azo)-3,3'-dimethyl (1,1'-biphenyl)-4-yl)azo)-8-hydroxy-6-sulfo-2-naphthalenyl)azo)-4,5-dihydroxy-, trisodium salt
CBNumber
CB72497652
Molecular Formula
C44H29N6Na3O14S3
Formula Weight
1030.89717
MOL File
7082-31-7.mol
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Direct blue 26, trisodium salt Property

EPA Substance Registry System
C.I. Direct Blue 26, trisodium salt (7082-31-7)
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Hazard and Precautionary Statements (GHS)

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Direct blue 26, trisodium salt Chemical Properties,Usage,Production

Preparation

3,3′-Dimethylbenzidine double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling, and then diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid (2 Moore) coupled.

Properties and Applications

red light navy blue. Soluble in water for hidden cyan, soluble in ethanol. The strong sulfuric acid for blue, shallow purple for diluted. The dye solution to join strong hydrochloric acid have hidden cyan precipitation; Add thick sodium hydroxide solution has the purple precipitation.

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

Direct blue 26, trisodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

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