6245-60-9 Usage
Description
Sodium 6-amino-4-hydroxy-5-[[2-(phenylsulphonyl)phenyl]azo]naphthalene-2-sulphonate is a water-soluble organic compound that exhibits a red color in water and a purplish-red color in ethanol. It undergoes color changes in the presence of strong acids and bases, turning dark purple in strong sulfuric acid and orange when diluted. In water, the addition of strong hydrochloric acid results in red-brown precipitation, while the addition of sodium hydroxide produces a purplish-red precipitate.
Uses
Used in Textile Industry:
Sodium 6-amino-4-hydroxy-5-[[2-(phenylsulphonyl)phenyl]azo]naphthalene-2-sulphonate is used as a dye for textiles due to its color-changing properties and solubility in water. It provides good light fastness, soaping, perspiration fastness, and fastness to oxygen bleaching and seawater, making it suitable for various textile applications.
Used in Colorimetry:
sodium 6-amino-4-hydroxy-5-[[2-(phenylsulphonyl)phenyl]azo]naphthalene-2-sulphonate can be used as an indicator in colorimetric analysis due to its color-changing properties in response to pH changes and the presence of specific chemicals.
Used in Analytical Chemistry:
Sodium 6-amino-4-hydroxy-5-[[2-(phenylsulphonyl)phenyl]azo]naphthalene-2-sulphonate can be employed as a reagent in analytical chemistry for the detection and quantification of various substances, taking advantage of its color-changing properties.
Preparation
2-(Phenylsulfonyl)benzenamine diazo, and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? in acid conditions coupled.
Flammability and Explosibility
Nonflammable
Standard
Light Fastness
Fading
Stain
ISO
6
AATCC
6
Check Digit Verification of cas no
The CAS Registry Mumber 6245-60-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,4 and 5 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6245-60:
(6*6)+(5*2)+(4*4)+(3*5)+(2*6)+(1*0)=89
89 % 10 = 9
So 6245-60-9 is a valid CAS Registry Number.
InChI:InChI=1/C22H17N3O6S2.Na/c23-17-11-10-14-12-16(33(29,30)31)13-19(26)21(14)22(17)25-24-18-8-4-5-9-20(18)32(27,28)15-6-2-1-3-7-15;/h1-13,26H,23H2,(H,29,30,31);/q;+1/p-1
