Reactive Red 221
Name:C.I.Reactive Red 221
Molecular Structure: Double azo class
C.I.Reactive Red 221,CAS 96726-27-1,1699.34,C57H35N16Na6O24S6,Reactive Red R-3B
Molecular Formula:C57H35N16Na6O24S6
Molecular Weight: 1699.34
CAS Registry Number:96726-27-1
Manufacturing Methods : 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid and 2,4,6-Trichloro-1,3,5-triazine condensation, again with Nicotinic acid condensation, the 2-Aminobenzenesulfonic acid diazo, and condensation product matches, and then generate a product (2 Moore) and Benzene-1,4-diamine condensation.
Properties and Applications: colourful red blue light. Rose red powder, soluble in water. Apply to blended fabric dyeing of a bath step, can be used for the high temperature of cotton fabrics fast stain, also used for Polyester/nylon, nylon/cotton, Polyester/silk and blended fabric dyeing.
| Standard | Light Fastness | Oxygen bleaching | Persperation Fastness | Soaping | |||
| Fading | Stain | Fading | Stain | Fading | Stain | ||
| JIS | 4 | 4-5 | 4-5 | 4-5 | 4 | ||
List of Suppliers:
Reactive Red R-3B
Kayacelon React Red CN-3B( Rite Industries Inc. )
Kayacelon Reactive Red CN-3B(Nippon Kayak u Co Ltd)
[…] C.I.Reactive Red 221 […]
Hi,
I’ve found this website really interesting in terms of chemistry applications. I was wondering if you can advice me and point me towards perhaps dyes that you have at NIR (if known)? For example do you know what the absorption of this Reactive 221? I am also interested in finding dyes of perylene derivs which I have found (e.g. Lumogen F Red 300) but I am also interested in perhaps getting to know more of these?
I thank you in advance.
Many thanks,
Sheryl