1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-6-[[3-[6-hydroxy-7-[(2-methoxyphenyl)azo]-8-sulfo-1H-naphth[1,2-d]imidazol-2-yl]phenyl]azo]-, trisodium salt

CAS No.
6227-08-3
Chemical Name:
1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-6-[[3-[6-hydroxy-7-[(2-methoxyphenyl)azo]-8-sulfo-1H-naphth[1,2-d]imidazol-2-yl]phenyl]azo]-, trisodium salt
Synonyms
Direct Red 55;C.I.Direct Red 55:C.I.27780;1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-6-[[3-[6-hydroxy-7-[(2-methoxyphenyl)azo]-8-sulfo-1H-naphth[1,2-d]imidazol-2-yl]phenyl]azo]-, trisodium salt
CBNumber:
CB54749896
Molecular Formula:
C34H22N7Na3O12S3
Molecular Weight:
885.74249
MDL Number:
MOL File:
6227-08-3.mol

1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-6-[[3-[6-hydroxy-7-[(2-methoxyphenyl)azo]-8-sulfo-1H-naphth[1,2-d]imidazol-2-yl]phenyl]azo]-, trisodium salt Chemical Properties,Uses,Production

Preparation

O-Anisidine diazo, and 2-(3-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling, its product to diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-1,3-disulfonic acid coupling.

Properties and Applications

blue-ray red. Soluble in water for product red, and adequate soluble in alcohol for red wine. The strong sulfuric acid for red purple, diluted for red jade. The dye solution with strong hydrochloric acid wine red precipitate; Add thick sodium hydroxide solution have red precipitate.

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

1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-6-[[3-[6-hydroxy-7-[(2-methoxyphenyl)azo]-8-sulfo-1H-naphth[1,2-d]imidazol-2-yl]phenyl]azo]-, trisodium salt Preparation Products And Raw materials

1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-6-[[3-[6-hydroxy-7-[(2-methoxyphenyl)azo]-8-sulfo-1H-naphth[1,2-d]imidazol-2-yl]phenyl]azo]-, trisodium salt C.I.Direct Red 55:C.I.27780 Direct Red 55 6227-08-3