3769-61-7 Usage
Uses
Used in Textile Industry:
Disodium 5-amino-4-hydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-2,7-disulphonate is used as a dye for textiles due to its color-changing properties and solubility in water. It provides various shades depending on the chemicals it interacts with, making it a versatile option for coloring fabrics.
Used in Analytical Chemistry:
disodium 5-amino-4-hydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-2,7-disulphonate can be used as an analytical reagent in the detection and quantification of certain substances, such as heavy metals, due to its color-changing properties in the presence of specific chemicals.
Used in Research and Development:
Disodium 5-amino-4-hydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-2,7-disulphonate can be utilized in research and development for the synthesis of new compounds and the study of chemical reactions involving azo dyes and their interactions with various chemicals.
Standard:
disodium 5-amino-4-hydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]naphthalene-2,7-disulphonate adheres to various standards, including ISO, for its performance in different conditions such as ironing fastness (ISO 5), light fastness (ISO 2-3), fulling (ISO 4), perspiration fastness (ISO 5), soaping (ISO 5), and resistance to water, alkali, and acid (both ISO 5). These standards ensure the compound's reliability and effectiveness in various applications.
Preparation
2-Amino-4,6-dinitrophenol diazotization, in alkaline condition and?4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupling
Standard
Ironing Fastness
Alkali
Acid
ISO
5
Check Digit Verification of cas no
The CAS Registry Mumber 3769-61-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,6 and 9 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 3769-61:
(6*3)+(5*7)+(4*6)+(3*9)+(2*6)+(1*1)=117
117 % 10 = 7
So 3769-61-7 is a valid CAS Registry Number.
InChI:InChI=1/C16H11N5O12S2.2Na/c17-9-5-8(34(28,29)30)1-6-2-12(35(31,32)33)14(16(23)13(6)9)19-18-10-3-7(20(24)25)4-11(15(10)22)21(26)27;;/h1-5,18,22H,17H2,(H,28,29,30)(H,31,32,33);;/q;2*+1/p-2/b19-14-;;