6359-96-2

Usage

Uses

Used in Dye Industry:
Sodium 3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-2-hydroxy-5-nitrobenzenesulphonate is utilized as a dye in various applications due to its color-changing properties and solubility in water and ethanol. Its ability to produce distinct colors in response to pH changes makes it suitable for use in dyeing textiles and other materials where colorfastness is required.
Used in Textile Industry:
In the textile industry, sodium 3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-2-hydroxy-5-nitrobenzenesulphonate serves as a dye for coloring fabrics. Its light, ironing, and perspiration fastness properties, as indicated by its ratings on ISO and AATCC standards, ensure that the dyed textiles maintain their color even under various conditions such as exposure to light, ironing, and sweat. sodium 3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-2-hydroxy-5-nitrobenzenesulphonate's performance in fulling, soaping, water, alkali, and acid resistance further contributes to the durability and quality of the dyed textiles.
Used in Analytical Chemistry:
Due to its color-changing behavior in response to pH, sodium 3-[[1-(3-chlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl]azo]-2-hydroxy-5-nitrobenzenesulphonate can be employed as an indicator or reagent in analytical chemistry for pH measurements or other applications where a visual color change is desired to signify a chemical reaction or the presence of specific ions.

Preparation

3-Amino-2-hydroxy-5-nitrobenzenesulfonic acid diazotization, and 1-(3-Chlorophenyl)-3-methyl-1H-pyrazol-5(4H)-one?coupling.

Standard

Ironing Fastness

Alkali

Acid

ISO

4-5

AATCC

4-5

InChI:InChI=1/C16H12ClN5O7S.Na/c1-8-14(16(24)21(20-8)10-4-2-3-9(17)5-10)19-18-12-6-11(22(25)26)7-13(15(12)23)30(27,28)29;/h2-7,14,19H,1H3,(H,27,28,29);/q;+1/p-1/b18-12-;