Vat Blue 42
- CAS NO.：1327-81-7
- Molecular Weight: 0
- EINECS: 215-500-6
- Update Date: 2025-12-31 14:38:37
What is Vat Blue 42?
Preparation
3-(4-Hydroxyanilino)-9-ethylcarbazole in Butanol sodium polysulfide solution heating, methods and C.I. Vat Blue 43 (C.I. 53630) similarity. This indophenol is by N – ethylcarbazole and 4-Nitrosophenol in concentrated sulfuric acid, in – 23 ℃ condensation and have to (BIOS 983,65-70) o note: use with C.I. leuco sulfur dye similar method, some the structure of the dyes can be converted into the leuco compound.
Properties and Applications
blue to red light blue. In concentrated sulfuric acid to green light blue, dilution after green blue precipitation; In the basic insurance powder solution or sodium hydroxide solution for yellow.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 3 | 5 | 3 | 3 | ||
| AATCC | 5 | 3 | 5 | 4 | 4 | ||
Properties of Vat Blue 42
| EPA Substance Registry System | C.I. Vat Blue 42 (1327-81-7) |
Safety information for Vat Blue 42
Computed Descriptors for Vat Blue 42
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