2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt

CAS No.
6655-98-7
Chemical Name:
2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt
Synonyms
Direct Blue 37;C.I.Direct Blue 37:C.I.24270;2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt
CBNumber:
CB24749390
Molecular Formula:
C34H25Cl2N4NaO16S4
Molecular Weight:
967.72
MDL Number:
MOL File:
6655-98-7.mol

2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt Chemical Properties,Uses,Production

Preparation

3,3′-Dimethoxylbenzidine double nitriding, and 8-Chloro-1-naphthol-3,6-disulfonic acid (2 Moore) coupled.

Properties and Applications

bright blue. Soluble in water for blue purple, not soluble in alcohol. The strong sulfuric acid for green light blue, for purple diluted. The dye solution to join hydrochloric acid soluble red light purple precipitate generated; Sodium hydroxide solution to join a cherry red.

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

2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt Preparation Products And Raw materials

2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-chloro-4-hydroxy-, tetrasodium salt Direct Blue 37 C.I.Direct Blue 37:C.I.24270 6655-98-7