Vat Red 6
Name:C.I.Vat Red 6,C.I.73355
Molecular Structure: Thioindigo class
C.I.Vat Red 6,C.I.73355,CAS 6371-19-3,374.86,C18H11ClO3S2
Molecular Formula:C18H11ClO3S2
Molecular Weight: 374.86
CAS Registry Number:6371-19-3
Manufacturing Methods : 6-Chloro-4-methylbenzo[b]thiophen-3(2H)-one and 6-Methoxybenzo[b]thiophen-3(2H)-one condensation.
Properties and Applications: bright pink to red. Not soluble in alcohol. The strong sulfuric acid for green, diluted to red; In nitric acid for red; In alkaline insurance powder solution for green light yellow; In the acidic insurance powder solution for colorless.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 5 | 5 | 6-7 | 4 | 4 | 4-5 | 5 |
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