2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt

Product Name
2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt
CAS No.
6406-05-9
Chemical Name
2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt
Synonyms
Direct Red 56;C.I.Direct Red 56:C.I.23600;2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt
CBNumber
CB44773649
Molecular Formula
C34H29N6NaO12S4
Formula Weight
864.87
MOL File
6406-05-9.mol
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Hazard and Precautionary Statements (GHS)

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2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt Chemical Properties,Usage,Production

Preparation

3,3′-Dimethylbenzidine double nitriding, and 3-Aminonaphthalene-2,7-disulfonic acid (2 Moore) coupled.

Properties and Applications

colourful red blue light. Soluble in water for palm light orange to red, slightly soluble in alcohol. The strong sulfuric acid for blue, orange to red light after dilute for brown. Dye with strong hydrochloric acid solution for orange brown, have precipitation; Add thick sodium hydroxide solution for palm to red light orange, precipitation.

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

2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

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2,7-Naphthalenedisulfonic acid, 4,4'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-amino-, tetrasodium salt Suppliers