trisodium 5-[[4'-[[8-[(2,4-diaminophenyl)azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate

CAS NO.：6505-12-0
Empirical Formula: C37H31N8NaO10S2
Molecular Weight: 834.81
EINECS: 229-387-6
SAFETY DATA SHEET (SDS)
Update Date: 2025-12-31 14:38:37

What is trisodium 5-[[4'-[[8-[(2,4-diaminophenyl)azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate?

Preparation

3,3′-Dimethylbenzidine double nitriding,first coupled with 2-Hydroxybenzoic acid, and then in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, its product to diazo, and Benzene-1,3-diamine coupling.

Properties and Applications

brown olive green light. Soluble in water for olive brown, and adequate soluble in alcohol. The strong sulfuric acid in dark red light blue to for purple, for olive diluted. The dye solution to join strong hydrochloric acid have dark brown precipitation; Join the red sulfuric acid 10%; Add thick sodium hydroxide solution have yellow brown precipitation.

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

Properties of trisodium 5-[[4'-[[8-[(2,4-diaminophenyl)azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate

EPA Substance Registry System

C.I. Direct Brown 52, trisodium salt (6505-12-0)

Safety information for trisodium 5-[[4'-[[8-[(2,4-diaminophenyl)azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate

Computed Descriptors for trisodium 5-[[4'-[[8-[(2,4-diaminophenyl)azo]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]salicylate

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Related products of tetrahydrofuran

5-[[2,4-Diamino-5-[(8-hydroxy-6-sodiosulfo-2-naphthalenyl)azo]phenyl]azo]-4-hydroxy-3-[[4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt

C.I. Direct Brown 46

2-Hydroxy-5-[[4'-[[2,6-dihydroxy-3-[(3-sulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid disodium salt

DIRECT BROWN 39

5-[[4'-[[8-[(2,4-Diaminophenyl)azo]-1-hydroxy-3,6-disulfo-2-naphtyl]azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid trisodium salt

sodium 4-[[diamino(naphthylazo)phenyl]azo]naphthalene-1-sulphonate

DIRECT BROWN 44

Direct Brown 44:1