6420-44-6 Usage
Uses
Used in Textile Industry:
Trisodium 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methoxyphenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate is used as a dye in the textile industry for its vibrant red color. Its solubility in water and ethanol makes it suitable for dyeing various types of fabrics.
Used in Colorant Applications:
trisodium 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methoxyphenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate is used as a colorant in various applications due to its ability to produce a range of colors when exposed to different chemicals and conditions. Its color-changing properties can be utilized in creating unique visual effects.
Used in Analytical Chemistry:
Trisodium 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methoxyphenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate can be used as an indicator in analytical chemistry, taking advantage of its color changes in response to pH and the presence of specific chemicals.
Properties and Applications:
trisodium 4-hydroxy-7-[[[[5-hydroxy-6-[(2-methoxyphenyl)azo]-7-sulphonato-2-naphthyl]amino]carbonyl]amino]-3-[(2-methyl-4-sulphonatophenyl)azo]naphthalene-2-sulphonate exhibits the following properties and applications:
Acid Resistance: ISO 4-5, AATCC 5
Alkali Resistance: ISO 4-5, AATCC 5
Light Fastness: ISO 2-3, AATCC 3
Soaping: ISO 2, AATCC 4
Water: ISO 1-2, AATCC 2
These properties make it suitable for use in various applications, including textiles, colorants, and analytical chemistry, where resistance to acids, alkalis, and light is important.
Preparation
4-Amino-3-methylbenzenesulfonic acid diazo, in acid conditions and N,N’-bis(4-hydroxy-2-sulfonaphthalene-7-yl)urea coupling, O-Anisidine diazo, in alkaline conditions and coupled product matches.
Standard
Acid Resistance
Fading
Stain
ISO
4-5
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 6420-44-6 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 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6420-44:
(6*6)+(5*4)+(4*2)+(3*0)+(2*4)+(1*4)=76
76 % 10 = 6
So 6420-44-6 is a valid CAS Registry Number.
InChI:InChI=1/C35H28N6O13S3/c1-18-13-23(55(45,46)47)9-12-26(18)38-40-31-29(56(48,49)50)16-19-14-21(7-10-24(19)33(31)42)36-35(44)37-22-8-11-25-20(15-22)17-30(57(51,52)53)32(34(25)43)41-39-27-5-3-4-6-28(27)54-2/h3-17,38-39H,1-2H3,(H2,36,37,44)(H,45,46,47)(H,48,49,50)(H,51,52,53)/b40-31-,41-32-
