6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt

6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt Structure
CAS No.
6227-04-9
Chemical Name:
6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt
Synonyms
C.I.27710;C.I.Direct Black 3;C.I.Direct Black 3:C.I.27710;6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt;Sodium 6-amino-4-hydroxy-3-((4-(phenyldiazenyl)naphthalen-1-yl)diazenyl)naphthalene-2-sulfonate
CBNumber:
CB22390851
Molecular Formula:
Molecular Weight:
0
MOL File:
6227-04-9.mol
Modify Date:
2023/5/9 9:30:35

6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt Chemical Properties,Uses,Production

Preparation

aniline diazo, and Naphthalen-1-amine coupling, again diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.

Properties and Applications

red light grey. Moderate soluble in water for violet and grey or black, slightly soluble in alcohol. ?In concentrated sulfuric acid for the gray light blue (plus purple), diluted red for sauce. Dye with strong hydrochloric acid solution for red sauce; Add thick sodium hydroxide solution for green light black, with precipitation.

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

6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt Preparation Products And Raw materials

6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt C.I.27710 C.I.Direct Black 3 C.I.Direct Black 3:C.I.27710 Sodium 6-amino-4-hydroxy-3-((4-(phenyldiazenyl)naphthalen-1-yl)diazenyl)naphthalene-2-sulfonate 6227-04-9