1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-, monosodium salt

CAS No.
6428-95-1
Chemical Name:
1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-, monosodium salt
Synonyms
Direct Green 57;C.I.Direct Green 57:C.I.24130;1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-, monosodium salt
CBNumber:
CB04748425
Molecular Formula:
C30H24N5NaO7S
Molecular Weight:
621.59563
MDL Number:
MOL File:
6428-95-1.mol

1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-, monosodium salt Chemical Properties,Uses,Production

Preparation

3,3′-Dimethoxylbenzidine double nitriding, first, and then in phenol coupled with alkaline conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling.

Properties and Applications

green. Soluble in water for Red sauce, easily soluble in ethanol for purple. In the dark for the strong sulfuric acid, diluted light gray light purple. The dye solution to join strong hydrochloric acid colored light unchanged, precipitation; Add thick sodium hydroxide solution discoloration.

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

1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-, monosodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

1-Naphthalenesulfonic acid, 4-amino-5-hydroxy-6-[[4'-[(4-hydroxyphenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-, monosodium salt C.I.Direct Green 57:C.I.24130 Direct Green 57 6428-95-1