6492-73-5 Usage
Uses
Used in Textile Industry:
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro is used as a dye for cotton fabric dyeing. It is effective in providing colorfastness to the fabric, with a rating of ISO 4 for ironing fastness, ISO 2 for chlorine bleach, and ISO 3-4 for light fastness. It is also suitable for use with mercerized and oxygen-bleached fabrics, with a soaping rating of ISO 4.
Used in Printing Industry:
In addition to dyeing, 3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro can be used for cotton fabric direct printing, resist printing, and discharge printing. This versatility makes it a valuable compound for various printing techniques and applications.
Used in Wool Dyeing:
3H-Indol-3-one,5-dromo-2-1,3-dihydro-3-oxo-2H-indol-2-ylidene-1,2-dihydro is also applicable for dyeing wool, expanding its use beyond cotton fabrics and into the realm of other natural fibers. This broadens its potential market and applications within the textile and fashion industries.
Preparation
Indigo in a sulphuric 1-Amino-4-bromo-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid (FIAT 764 and 1313); (b) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- or 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- white (C.I. 73001) and bromine in the presence of water response; (C) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- and bromine in the presence of Pyridine or starch reaction, or in aqueous hydrogen bromide, hydrogen chloride or the presence of sulfuric acid reaction; (d) 5-Bromo-3-indolinone?and 3H-indol-3-one?condensation.
Standard
Ironing Fastness
Fading
Stain
ISO
4
Check Digit Verification of cas no
The CAS Registry Mumber 6492-73-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,9 and 2 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6492-73:
(6*6)+(5*4)+(4*9)+(3*2)+(2*7)+(1*3)=115
115 % 10 = 5
So 6492-73-5 is a valid CAS Registry Number.
InChI:InChI=1/C16H9BrN2O2/c17-8-5-6-12-10(7-8)16(21)14(19-12)13-15(20)9-3-1-2-4-11(9)18-13/h1-7,18-19H
