4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl-
- CAS NO.：6369-47-7
- Empirical Formula: C25H16N2O2
- Molecular Weight: 376.41
- EINECS: 613-325-3
![4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl- Structural](https://img.chemicalbook.in/CAS/20200331/GIF/6369-47-7.gif)
What is 4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl-?
Preparation
10-Methyl-11H-benzo[a]carbazole-3,4-dione with 2-Phenylimino-3-indolinone in Acetic anhydride – formic acid solution condensation.
Properties and Applications
blue light grey to blue black. Black powder. In concentrated sulfuric acid to black, dilute is blue-black; In the basic insurance powder solution for green yellow; In the acidic insurance powder solution for pale yellow. Dye cellulose fibre for blue ash or blue black. Used for cotton fabric direct dyeing, reserving, coloring discharge.
| Standard | Ironing Fastness | Chlorine bleach | Light Fastness | Mercerized | Oxygen bleach | Soaping | |
| Fading | Stain | ||||||
| ISO | 4 | 4 | 4-5 | 3 | 3 | ||
Safety information for 4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl-
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![Benzamide, N,N'-[(9,10-dihydro-2-methyl-9,10-dioxo-1,3-anthracenediyl)bis[imino(9,10-dihydro-9,10-dioxo-4,1-anthracenediyl)]]bis-](https://img.chemicalbook.in/CAS/20200119/GIF/61902-44-1.gif)
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