4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt

CAS No.
6405-98-7
Chemical Name:
4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt
Synonyms
C.I.23515;Direct Red 68;C.I.Direct Red 68;C.I.Direct Red 68:C.I.23515;4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt
CBNumber:
CB92222773
Molecular Formula:
C30H26N5NaO5S
Molecular Weight:
591.62
MDL Number:
MOL File:
6405-98-7.mol

4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt Chemical Properties,Uses,Production

Preparation

3,3′-Dimethylbenzidine double nitriding, respectively with the 4-Hydroxynaphthalene-1-sulfonic acid and Resorcinol coupling .

Properties and Applications

red. Soluble in water is palm red light. The strong sulfuric acid for blue, purple precipitation after diluted; In a dilute acetic acid with brown in the precipitation. The dye solution to join strong hydrochloric acid has the purple precipitation; Add thick sodium hydroxide solution no change.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
AATCC 2 5 1-2 2-3 1-2

4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt C.I.23515 C.I.Direct Red 68 Direct Red 68 C.I.Direct Red 68:C.I.23515 6405-98-7