| Identification | Back Directory | [Name]
4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl- | [CAS]
6369-47-7 | [Synonyms]
Vat Black 2
C.I.Vat Black 2:C.I.73830
4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl- | [EINECS(EC#)]
613-325-3 | [Molecular Formula]
C25H16N2O2 | [MOL File]
6369-47-7.mol | [Molecular Weight]
376.407 |
| Hazard Information | Back Directory | [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.
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Standard
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Ironing Fastness
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Chlorine bleach
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Light Fastness
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Mercerized
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Oxygen bleach
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Soaping
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Fading
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Stain
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ISO
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4
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4
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4-5
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3
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3
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