C.I. Direct red 74

C.I. Direct red 74 structure

CAS No.: 8003-75-6

Chemical Name:: C.I. Direct red 74

Synonyms: Direct Red 74;C.I. Direct red 74;C.I.Direct Red 74:C.I.22170

CBNumber:: CB42493431

Molecular Formula:: C32H24N6O7S2.2Na

Molecular Weight:: 714.69

MDL Number:

MOL File:: Mol file

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C.I. Direct red 74 Properties

EPA Substance Registry System	C.I. Direct Red 74 (8003-75-6)

C.I. Direct red 74 Chemical Properties,Uses,Production

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first and 6-Aminonaphthalene-2-sulfonic acid and 7-Aminonaphthalene-2-sulfonic acid coupling, and then in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

blue-ray red. Soluble in water for red jujube, and adequate soluble in ethanol in red. The strong sulfuric acid in blue, diluted red for sauce. The dye solution to join strong hydrochloric acid for Red sauce, precipitation; Add thick sodium hydroxide solution for orange brown.

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

C.I. Direct red 74 Preparation Products And Raw materials

Raw materials

6-Amino-2-naphthalenesulfonic acid Benzidine J acid 2-Aminonaphthalene-7-sulfonic acid

Preparation Products

8003-75-6(C.I. Direct red 74)Related Search:

Direct Red 73 [2,6'-Bibenzothiazole]-7-sulfonic acid, 2'-[4-[(2-hydroxy-6-sulfo-1-naphthalenyl)azo]phenyl]-6-methyl-, disodium salt 7-[[[[4-(Acetylamino)phenyl]amino]carbonyl]amino]-4-hydroxy-3-[(2-methoxyphenyl)azo]-2-naphthalenesulfonic acid sodium salt 7-[[[[4-(Acetylamino)phenyl]amino]carbonyl]amino]-4-hydroxy-3-[(2-methylphenyl)azo]-2-naphthalenesulfonic acid sodium salt 4-Amino-3-[[4'-[(2,4-dihydroxyphenyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-1-naphthalenesulfonic acid sodium salt

disodium 4-amino-3-[[4'-[(2-amino-6-sulphonatonaphthyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-1-sulphonate Direct Red 69 BENZOPURPURIN 10B Direct red 72

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C.I. Direct red 74 Direct Red 74 C.I.Direct Red 74:C.I.22170 8003-75-6