29128-55-0 Usage
Description
2-[(2-hydroxy-1-naphthyl)azo]naphthalenesulphonic acid, commonly known as Sudan III, is an azo dye characterized by its naphthalene sulphonate group and azo linkage. It is insoluble in water but soluble in organic solvents, which makes it suitable for staining lipids and triglycerides.
Used in Histology and Microbiology:
Sudan III is used as a lipid-soluble dye for staining lipids and triglycerides in histology and microbiology. Its lipophilic nature allows it to bind to lipids, providing a distinct color contrast for easier identification and analysis of lipid-containing structures within cells and tissues.
Used in Textile Industry:
In the textile industry, Sudan III is used as a colorant to impart vibrant hues to fabrics. Its solubility in organic solvents facilitates the dyeing process, resulting in durable and long-lasting colorfastness.
Used in Plastics Industry:
Sudan III is also utilized as a colorant in the plastics industry to add color to various plastic products. Its compatibility with organic solvents and resistance to fading make it a popular choice for coloring plastic materials.
Used in Food Industry (with caution):
Although Sudan III has been used as a colorant in the food industry, it is recognized as a possible carcinogen. Due to health concerns, its use as a food additive has been banned in some countries. Any application in the food industry should be approached with caution and in compliance with local regulations.
Check Digit Verification of cas no
The CAS Registry Mumber 29128-55-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,1,2 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 29128-55:
(7*2)+(6*9)+(5*1)+(4*2)+(3*8)+(2*5)+(1*5)=120
120 % 10 = 0
So 29128-55-0 is a valid CAS Registry Number.
InChI:InChI=1/C20H14N2O4S/c23-18-12-10-13-5-1-3-7-15(13)19(18)22-21-17-11-9-14-6-2-4-8-16(14)20(17)27(24,25)26/h1-12,23H,(H,24,25,26)
