Vat blue 8 (C.I. 73800)
Vat blue 8 (C.I. 73800) Basic information
- Product Name:
- Vat blue 8 (C.I. 73800)
- Synonyms:
-
- Vat blue 8 (C.I. 73800)
- 5-Chloro-2-[4-chloro-1-oxonaphthalen-2(1H)-ylidene]-7-methoxy-4-methyl-1H-indol-3(2H)-one
- C.I.73800
- C.I.Vat Blue 8
- Indanthren Printing Blue 2G
- C.I.Vat Blue 8:C.I.73800
- Vat Blue 8
- CAS:
- 6424-71-1
- MF:
- C20H13Cl2NO3
- MW:
- 386.22812
- Mol File:
- 6424-71-1.mol
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Vat blue 8 (C.I. 73800) Usage And Synthesis
Preparation
5-chloro-7-methoxy-4-methyl phenol indolenine?and 4-Chloronaphthalene-1,2-dione?condensation, or 4-Methyl-5-chloro-7-methoxy-3-indolinone and 4-Chloro-1-naphthol condensation (BIOS 983).
Properties and Applications
blue to navy blue. In concentrated sulfuric acid to blue light green; In concentrated nitric acid for blue green to brown light yellow, In the basic insurance powder solution for yellow; In the acidic insurance powder solution for pale yellow.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4-5 | 4 | 5-6 | 4 | 4 | ||
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