2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt

Product Name: 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt
CAS No.: 6428-38-2
Chemical Name: 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt
Synonyms: Direct Black 32;C.I.DIRECTBLACK32;LVTRSXQJPWCXPG-KGVGWTEBSA-N;Direct black 32 (C.I. 35440);C.I.Direct Black 32:C.I.35440;c.i. direct black 32, trisodium salt;2-Naphthalenesulfonic acid, 6-2-amino-4-(2-hydroxyethyl)aminophenylazo-3-4-4-7-2-amino-4-(2-hydroxyethyl)aminophenylazo-1-hydroxy-3-sulfo-2-naphthalenylazophenylamino-3-sulfophenylazo-4-hydroxy-, trisodium salt;2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt;trisodium,(3Z)-6-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-3-[[4-[4-[(2Z)-2-[7-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-1-oxo-3-sulfonatonaphthalen-2-ylidene]hydrazinyl]-2-sulfonatoanilino]phenyl]hydrazinylidene]-4-oxonaphthalene-2-sulfon
CBNumber: CB9909461
Molecular Formula: C48H40N13Na3O13S3
Formula Weight: 1172.07481
MOL File: 6428-38-2.mol

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2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt Property

EPA Substance Registry System: 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt (6428-38-2)

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

American Custom Chemicals Corporation

Product number: DYE0003088
Product name: 6-[[2-AMINO-4-[(2-HYDROXYETHYL)AMINO]PHENYL]AZO]-3-[[4-[[4-[[7-[[2-AMINO-4-[(2-HYDROXYETHYL)AMINO]PHENYL]AZO]-1-HYDROXY-3-SULFO-2-NAPHTHALENYL]AZO]PHENYL]AMINO]-3-SULFOPHENYL]AZO]-4-HYDROXY-2-NAPHTHALENESULFONIC ACID TRISODIUM SALT
Purity: 95.00%
Packaging: 5MG
Price: $501.82
Updated: 2021/12/16

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2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt Chemical Properties,Usage,Production

Chemical Properties

Gray to black powder. Dissolved in water it is black, in concentrated sulfuric acid it is reddish-purple, and when diluted there is a black-purple precipitate; in concentrated hydrochloric acid there is a black precipitate; in concentrated caustic soda solution there is a dark purple precipitate.

Uses

C.I. Direct black 32 is a good dyeing agent for cotton fabrics.

Preparation

5-Amino-2-(4-aminophenylamino)benzenesulfonic acid double nitriding, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? (2 Moore) coupled, product to double nitriding, and 2-(3-Aminophenylamino)ethanol (2 Moore) coupled.

Hazard

Moderately toxic. Low toxicity by ingestion.

Properties and Applications

black. Grey to black powder. The strong sulfuric acid for red purple, after dilute black purple precipitation; In strong hydrochloric acid in black precipitation; In the thick of sodium hydroxide solution dark purple precipitation. Mainly used for cotton, such as glue cellulose fiber fabric and silk dyeing and printing. Used for sweet silk and viscose interwoven fabric dyeing.

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

References

[1] Sawada K, Ueda M. Adsorption behavior of direct dye on cotton in non-aqueous media[J]. Dyes and pigments, 2003, 58(1): 37-40.

2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt Preparation Products And Raw materials

Raw materials

Preparation Products

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2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt Suppliers

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Hubei Jusheng Technology Co.,Ltd.

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Biosynth Biological Technology (Suzhou) Co Ltd

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Hangzhou MolCore BioPharmatech Co.,Ltd.

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6428-38-2, 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium saltRelated Search:

2-Naphthalenesulfonic acid, 6-(2,4-diaminophenyl)azo-3-4-(2,4-diaminophenyl)azo-3-sulfophenylazo-4-hydroxy-, disodium salt Direct Black 22:1 3,3'-[1,1'-Biphenyl-4,4'-diylbis(azo)]bis(6-amino-4-hydroxynaphthalene-2-sulfonic acid sodium) salt Direct Black 27 2,7-Naphthalenedisulfonic acid, 5-amino-4-hydroxy-3-[[4'-[[4-hydroxy-2-(phenylamino)phenyl]azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-, disodium salt 6-Amino-4-hydroxy-3-[[4-(phenylazo)-1-naphtyl]azo]-2-naphthalenesulfonic acid sodium salt 4-Amino-6-[(4-aminophenyl)azo]-3-[[4'-[[5-[(4-aminophenyl)azo]-2,4-diaminophenyl]azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt 4-Amino-3,6-bis[[4-[(2,4-diamino-5-methylphenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulfonic acid disodium salt Direct Black 24 DIRECT BLACK 22 2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt 5-Amino-2-[(4-aminophenyl)amino]benzenesulfonic acid 4-(PHENYLAZO)DIPHENYLAMINE

Direct Black 32

2-Naphthalenesulfonic acid, 6-2-amino-4-(2-hydroxyethyl)aminophenylazo-3-4-4-7-2-amino-4-(2-hydroxyethyl)aminophenylazo-1-hydroxy-3-sulfo-2-naphthalenylazophenylamino-3-sulfophenylazo-4-hydroxy-, trisodium salt

C.I.DIRECTBLACK32

c.i. direct black 32, trisodium salt

2-Naphthalenesulfonic acid, 6-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-3-[[4-[[4-[[7-[[2-amino-4-[(2-hydroxyethyl)amino]phenyl]azo]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]phenyl]amino]-3-sulfophenyl]azo]-4-hydroxy-, trisodium salt

Direct black 32 (C.I. 35440)

LVTRSXQJPWCXPG-KGVGWTEBSA-N

trisodium,(3Z)-6-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-3-[[4-[4-[(2Z)-2-[7-[[2-amino-4-(2-hydroxyethylamino)phenyl]diazenyl]-1-oxo-3-sulfonatonaphthalen-2-ylidene]hydrazinyl]-2-sulfonatoanilino]phenyl]hydrazinylidene]-4-oxonaphthalene-2-sulfon

C.I.Direct Black 32:C.I.35440

6428-38-2

Organics