2668-05-5 Usage
Uses
Used in Textile Industry:
(6Z)-4-amino-6-(naphthalen-1-ylhydrazinylidene)-5-oxo-3-(4-sulfophenyl)diazenyl-naphthalene-1-sulfonic acid is used as a dye for wool and polyamide fibers in the textile industry. Its ability to produce a dark color in water and change color when exposed to different chemicals makes it a suitable choice for dyeing and printing applications.
Used in Dye Production:
(6Z)-4-amino-6-(naphthalen-1-ylhydrazinylidene)-5-oxo-3-(4-sulfophenyl)diazenyl-naphthalene-1-sulfonic acid is also used in the production of dyes due to its unique color-changing properties. Its ability to produce a blue color when exposed to strong sulfuric acid and a blue light green color when exposed to hydrochloric acid makes it a valuable component in the creation of various dyes.
Standard:
The compound has been tested for various standards, including light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater. The results of these tests are as follows:
Light Fastness: ISO 5-6
Soaping: ISO 3
Perspiration Fastness: ISO 2-3
Oxygen Bleaching: ISO 2
Fastness to Seawater: ISO 2
These standards indicate the compound's performance and durability in various conditions, making it a reliable choice for use in the textile and dye industries.
Preparation
4-Aminobenzenesulfonic acid diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling, and then Naphthalen-1-amine diazo in alkaline conditions, and single accidentally coupled nitrogen compounds.
Standard
Light Fastness
Fading
Stain
ISO
5-6
Check Digit Verification of cas no
The CAS Registry Mumber 2668-05-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,6 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 2668-05:
(6*2)+(5*6)+(4*6)+(3*8)+(2*0)+(1*5)=95
95 % 10 = 5
So 2668-05-5 is a valid CAS Registry Number.
InChI:InChI=1/C26H19N5O7S2/c27-25-22(31-28-16-8-10-17(11-9-16)39(33,34)35)14-23(40(36,37)38)19-12-13-21(26(32)24(19)25)30-29-20-7-3-5-15-4-1-2-6-18(15)20/h1-14,29H,27H2,(H,33,34,35)(H,36,37,38)/b30-21+,31-28+
