1937-34-4 Usage
Description
Tetrasodium 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-hydroxynaphthalene-2,7-disulphonate], also known as Direct Red 79, is an organic azo dye and a freshwater pollutant. It is characterized by its acid and alkali resistance, light fastness, and its ability to be used in soaping, water fading, and stain fading.
Uses
Used in Textile Industry:
Tetrasodium 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-hydroxynaphthalene-2,7-disulphonate] is used as a dye for coloring textiles. Its acid and alkali resistance, as well as light fastness, make it a suitable choice for this application.
Used in Leather Industry:
In the leather industry, tetrasodium 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-hydroxynaphthalene-2,7-disulphonate] is used as a dye for coloring leather products. Its ability to resist fading in water makes it an ideal choice for this application.
Used in Paper Industry:
Tetrasodium 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-hydroxynaphthalene-2,7-disulphonate] is also used as a dye in the paper industry. Its acid and alkali resistance, as well as its light fastness, make it a suitable choice for coloring paper products.
Used as a Freshwater Pollutant Indicator:
Due to its classification as a freshwater pollutant, tetrasodium 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-hydroxynaphthalene-2,7-disulphonate] can be used as an indicator of water pollution in aquatic environments. Its presence in water samples can signal contamination from industrial or agricultural sources.
Please note that the provided materials do not specify the exact applications of tetrasodium 4,4'-[carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-hydroxynaphthalene-2,7-disulphonate]. The uses listed above are inferred based on its properties and typical applications of similar compounds in various industries.
Flammability and Explosibility
Nonflammable
Standard
Acid Resistance
Fading
Stain
ISO
4
AATCC
5
Check Digit Verification of cas no
The CAS Registry Mumber 1937-34-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,3 and 7 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1937-34:
(6*1)+(5*9)+(4*3)+(3*7)+(2*3)+(1*4)=94
94 % 10 = 4
So 1937-34-4 is a valid CAS Registry Number.
InChI:InChI=1/C37H32N6O17S4.4Na/c1-17-5-27(33(59-3)15-25(17)40-42-29-11-21(61(47,48)49)7-19-9-23(63(53,54)55)13-31(44)35(19)29)38-37(46)39-28-6-18(2)26(16-34(28)60-4)41-43-30-12-22(62(50,51)52)8-20-10-24(64(56,57)58)14-32(45)36(20)30;;;;/h5-16,44-45H,1-4H3,(H2,38,39,46)(H,47,48,49)(H,50,51,52)(H,53,54,55)(H,56,57,58);;;;/q;4*+1/p-4/b42-40+,43-41+;;;;
