tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate

CAS No.: 33540-94-2

Chemical Name:: tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate

Synonyms: C.I.Direct Blue 74:C.I.34146;2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-6(or 7)-sulfo-4-6(or 7)-sulfo-4-(3-sulfophenyl)azo-1-naphthalenylazo-1-naphthalenylazo-, tetrasodium salt;tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate

CBNumber:: CB6922649

Molecular Formula:: C36H21N7O13S4.4Na

Molecular Weight:: 979.822

MOL File:: 33540-94-2.mol

Modify Date:: 2022/12/21 16:56:50

Request For Quotation

tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate Properties

EPA Substance Registry System	2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[6(or 7)-sulfo-4-[[6(or 7)-sulfo-4-[(3-sulfophenyl)azo]-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, tetrasodium salt (33540-94-2)

tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate Chemical Properties,Uses,Production

Preparation

3-Aminobenzenesulfonic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid first coupling, its product to diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid?second coupling, again diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid third coupling.

Properties and Applications

dark blue. Black powder. Soluble in water for red light blue. The strong sulfuric acid for Gray light blue, blue for red after diluted. The dye solution with 10% after sulfuric acid into dark purple; Add 30% sodium hydroxide solution into the red. Water-soluble general, more sensitive to hard. Exhaust the dye sex good, excellent discharge. Copper ions in dyeing, iron ion a slight change color. Used for cotton, viscose and silk dyeing and printing, also can be used for cotton/rayon blended fabric dyeing and printing, also used for paper color.

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

tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate Preparation Products And Raw materials

Raw materials

1-Naphthylamine-7-sulfonic acid J acid 1-Aminonaphthalene-6-sulfonic acid Metanilic acid

Preparation Products

33540-94-2(tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate)Related Search:

DIRECT BLUE 75 Direct Blue 77 Direct Blue 71 Direct Blue 72 3-[[4-[[4-[(1-Hydroxy-6-phenylamino-3-sodiosulfo-2-naphthalenyl)azo]-6-sodiosulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]naphthalene-1,5-disulfonic acid disodium salt

DIRECT BLUE 76 DIRECT BLUE 78 tetrasodium 2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]-1-naphthyl]azo]benzene-1,4-disulphonate BENZOAZURINE tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate

1-Naphthylamine-7-sulfonic acid

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tetrasodium 7-amino-4-hydroxy-3-[[6(or 7)-sulphonato-4-[[6(or 7)-sulphonato-4-[(3-sulphonatophenyl)azo]naphthyl]azo]naphthyl]azo]naphthalene-2-sulphonate 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-6(or 7)-sulfo-4-6(or 7)-sulfo-4-(3-sulfophenyl)azo-1-naphthalenylazo-1-naphthalenylazo-, tetrasodium salt C.I.Direct Blue 74:C.I.34146 33540-94-2 Organics