15139-76-1 Usage
Description
Disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate is a synthetic azo dye characterized by its dark orange color. It exhibits different shades when dissolved in various chemical solutions, such as purple in strong sulfuric acid, red in strong hydrochloric acid, and yellow-orange in a 10% sodium hydroxide solution. disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate is known for its light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater, making it suitable for various applications in the coloring industry.
Uses
Used in Food Industry:
Disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate is used as a coloring agent for coloring sausage and frankfurter casings. Its ability to provide a consistent and vibrant color makes it a popular choice in the food industry.
Used in Textile Industry:
In the textile industry, disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate is used as a dye for coloring fabrics. Its light fastness, soaping, and perspiration fastness properties make it suitable for use in clothing and other textile products that require long-lasting color.
Used in Plastics and Polymers Industry:
Disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate is also used as a coloring agent in the plastics and polymers industry. Its ability to provide a consistent color and resistance to fading and staining makes it an ideal choice for various plastic products.
Standard:
The performance and quality of disodium 3-ethyl 4,5-dihydro-5-oxo-4-[(4-sulphonato-1-naphthyl)azo]-1-(4-sulphonatophenyl)-1H-pyrazole-3-carboxylate are measured according to various international standards, such as ISO and AATCC, ensuring its reliability and consistency in different applications.
Preparation
Phenylhydrazine-4-sulfonic acid?and 2-Hydroxymaleic acid?ethyl ester derivatives of the sodium reaction, and partly hydrolysis, lost a ethyl, finally and diazo of 4-Aminonaphthalene-1-sulfonic acid matches.
Safety Profile
: When heated to decomposition emits toxic fumes of SOx.
Standard
Light Fastness
Fading
Stain
Check Digit Verification of cas no
The CAS Registry Mumber 15139-76-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,1,3 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 15139-76:
(7*1)+(6*5)+(5*1)+(4*3)+(3*9)+(2*7)+(1*6)=101
101 % 10 = 1
So 15139-76-1 is a valid CAS Registry Number.
InChI:InChI=1/C22H18N4O9S2.2Na/c1-2-35-22(28)20-19(21(27)26(25-20)13-7-9-14(10-8-13)36(29,30)31)24-23-17-11-12-18(37(32,33)34)16-6-4-3-5-15(16)17;;/h3-12,19H,2H2,1H3,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2
