6428-38-2 Usage
Uses
Used in Textile Industry:
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 is used as a dyeing agent for cotton, glue cellulose fiber fabric, and silk dyeing and printing. Its properties make it particularly suitable for achieving colorfastness and resistance to various conditions.
Used in Sweet Silk and Viscose Interwoven Fabric Dyeing:
In the production of sweet silk and viscose interwoven fabrics, 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 is employed as a dyeing agent to ensure the desired color and quality of the finished fabric. Its performance in terms of acid resistance, alkali resistance, and light fastness contributes to the durability and appearance of the fabric.
Standard:
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 adheres to the following standards in terms of its performance:
Acid Resistance: 4
Alkali Resistance: 4
Light Fastness: 4
Soaping: 3-4
Water: 4
Fading: 4
Stain: 4
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.
Standard
Acid Resistance
Fading
Stain
ISO
4
Check Digit Verification of cas no
The CAS Registry Mumber 6428-38-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,2 and 8 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6428-38:
(6*6)+(5*4)+(4*2)+(3*8)+(2*3)+(1*8)=102
102 % 10 = 2
So 6428-38-2 is a valid CAS Registry Number.
InChI:InChI=1/C48H43N13O13S3.3Na/c49-37-23-30(51-15-17-62)9-12-39(37)58-55-32-3-1-26-19-43(76(69,70)71)45(47(64)35(26)21-32)60-54-29-7-5-28(6-8-29)53-41-14-11-34(25-42(41)75(66,67)68)57-61-46-44(77(72,73)74)20-27-2-4-33(22-36(27)48(46)65)56-59-40-13-10-31(24-38(40)50)52-16-18-63;;;/h1-14,19-25,51-53,62-65H,15-18,49-50H2,(H,66,67,68)(H,69,70,71)(H,72,73,74);;;/q;3*+1/p-3
