5442-09-1 Usage
Description
4,5-Dihydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt is a complex organic compound that exhibits unique color-changing properties in response to different pH levels. It is characterized by its red light blue color in the presence of red light, deep purple color when dissolved in water, and red light purple color when slightly soluble in alcohol. 4,5-Dihydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt also displays green light blue color in strong sulfuric acid and a purple color when diluted with red. Additionally, it changes to deep purple when mixed with strong hydrochloric acid and turns purplish red upon the addition of a thick sodium hydroxide solution.
Uses
Used in Dye Industry:
4,5-Dihydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt is used as a pH indicator dye for various applications in the dye industry. Its ability to change color in response to different pH levels makes it a valuable tool for monitoring and controlling the acidity or alkalinity of solutions during dye production and application processes.
Used in Analytical Chemistry:
In analytical chemistry, 4,5-Dihydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt can be employed as a colorimetric reagent to detect and measure the presence of specific ions or compounds in a sample. Its color-changing properties can be utilized to develop sensitive and accurate analytical methods for various applications.
Used in Textile Industry:
4,5-Dihydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-3,3'-dimethyl-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt can also be used in the textile industry as a colorant for dyeing fabrics. Its light fastness, acid resistance, and alkali resistance properties make it suitable for creating long-lasting and durable colors on textiles. Additionally, its ability to fade and stain under specific conditions can be exploited to create unique color effects and patterns on fabrics.
Standard:
Acid Resistance: 5
Alkali Resistance: 3
Light Fastness: 2
Soaping: 1-2
Water Fading: 2
Stain Fading: 1-2
These standard values indicate the compound's performance in various conditions, such as its resistance to acids and alkalis, its ability to maintain color under light exposure, and its behavior during soaping and water fading processes. These properties make it suitable for specific applications in different industries, as mentioned above.
Preparation
3,3′-Dimethylbenzidine double nitriding, first and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling, again with 4-Hydroxynaphthalene-1-sulfonic acid coupled
Standard
Acid Resistance
Fading
Stain
ISO
5
Check Digit Verification of cas no
The CAS Registry Mumber 5442-09-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,4 and 2 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5442-09:
(6*5)+(5*4)+(4*4)+(3*2)+(2*0)+(1*9)=81
81 % 10 = 1
So 5442-09-1 is a valid CAS Registry Number.
InChI:InChI=1/C34H26N4O12S3/c1-17-11-19(7-9-25(17)35-37-27-16-29(52(45,46)47)23-5-3-4-6-24(23)33(27)40)20-8-10-26(18(2)12-20)36-38-32-30(53(48,49)50)14-21-13-22(51(42,43)44)15-28(39)31(21)34(32)41/h3-16,35-36,39H,1-2H3,(H,42,43,44)(H,45,46,47)(H,48,49,50)/b37-27+,38-32-
