Direct Brown 79

CAS No.: 6483-77-8

Chemical Name:: Direct Brown 79

Synonyms: C.I.30050;Direct Brown CN;Direct Brown 79;c.i. direct brown 79;C.I. Direct brown 79(30050);C.I.Direct Brown 79:C.I.30050;2-Hydroxy-5-[[4'-[[2,4-diamino-5-[(2,4-disulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt;trisodium,(3E)-3-[[4-[4-[[2,4-diamino-5-[(2,4-disulfonatophenyl)diazenyl]phenyl]diazenyl]phenyl]phenyl]hydrazinylidene]-6-oxocyclohexa-1,4-diene-1-carboxylate

CBNumber:: CB3967948

Molecular Formula:: C31H24N8O9S2.3Na

Molecular Weight:: 785.68

MOL File:: 6483-77-8.mol

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Direct Brown 79 Properties

EPA Substance Registry System	C.I. Direct Brown 79 (6483-77-8)

Direct Brown 79 Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then and 4-Aminobenzene-1,3-disulfonic acid diazo, and Benzene-1,3-diamine coupled to a product matches.

Properties and Applications

brown. Brown powder. Soluble in water for yellow orange brown solution, soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for violet black, diluted for brown. The dye solution to join thick and strong hydrochloric acid sodium hydroxide solution are generating orange brown precipitation. Cellulose fiber of dyeing, the dye devoured performance is good, temperature in 80 ℃, the largest affinity, discharge the gender is good, hard to sensitive. After dyeing with copper sulfate handling,can improve the dyeing fastness. Dyeing cotton and viscose for yellow brown. Mainly used for dyeing knitting fabric, blankets, flannelette, viscose/silk, Wool / nylon blended fabric dyeing, generally not directly used for printing.

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

Direct Brown 79 Preparation Products And Raw materials

Raw materials

Salicylic acid 4-Amino-1,3-benzenedisulfonic acid Benzidine m-Phenylenediamine

Preparation Products

Direct Brown 79 Suppliers

Global( 3)Suppliers

Supplier	Tel	Country	ProdList	Advantage	Inquiry
OCEAN TRADING CORPORATION	+91(22) 24921669	New Delhi, India	6211	58	Inquiry
Shanghai Road Dyestuffs & Chemicals Co., Ltd	86-21-6284 6670	China	706	34	Inquiry
Dynasty Colourants Co., Ltd.	86 0574 27862107 27862719	China	3306	51	Inquiry

Supplier	Advantage
OCEAN TRADING CORPORATION	58
Shanghai Road Dyestuffs & Chemicals Co., Ltd	34
Dynasty Colourants Co., Ltd.	51

6483-77-8(Direct Brown 79)Related Search:

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disodium 2'-[4-[[2,6-dihydroxy-3-[(4-sulphonatophenyl)azo]phenyl]azo]phenyl]-6-methyl[2,6'-bibenzothiazole]-7-sulphonate CALCOMINE DARK GREEN BG trisodium 4-[[7-[(2,4-diaminophenyl)azo]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-4'-[(4-hydroxyphenyl)azo][1,1'-biphenyl]-2,2'-disulphonate Durazol Brown 4RNS

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C.I.30050 Direct Brown 79 Direct Brown CN c.i. direct brown 79 C.I. Direct brown 79(30050) 2-Hydroxy-5-[[4'-[[2,4-diamino-5-[(2,4-disulfophenyl)azo]phenyl]azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt C.I.Direct Brown 79:C.I.30050 trisodium,(3E)-3-[[4-[4-[[2,4-diamino-5-[(2,4-disulfonatophenyl)diazenyl]phenyl]diazenyl]phenyl]phenyl]hydrazinylidene]-6-oxocyclohexa-1,4-diene-1-carboxylate 6483-77-8