Vat Red 21
Name:C.I.Vat Red 21,C.I.61670
Molecular Structure: anthraquinones
C.I.Vat Red 21,C.I.61670,CAS 4430-70-0,736.68,C44H24N4O8
Molecular Formula:C44H24N4O8
Molecular Weight: 736.68
CAS Registry Number:4430-70-0
Manufacturing Methods :
Properties and Applications: Dark blue light red. Deep red powder, insoluble in water. Basic also leuco for red brown; Acid reduction leuco for yellow brown. Mainly used for cotton fabric dyeing, levelness is very good, also can be used for cotton fabric direct printing and discharge printing.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 3 | 5 | 7 | 4 | 5 | 5 | 4-5 |
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