| Identification | Back Directory | [Name]
Vat Blue 48 | [CAS]
6417-56-7 | [Synonyms]
C.I.73075
Vat Blue 48
Indigo MLB/6B
C.I.Vat Blue 48
C.I.Vat Blue 48:C.I.73075
4,4',5,5',7,7'-Hexabromo-Δ2,2'(3H,3'H)-bi[1H-indole]-3,3'-dione
4,5,7,4',5',7'-hexabromo-1H,1'H-[2,2']biindolylidene-3,3'-dione
4,5,7-Tribromo-2-(4,5,7-tribromo-3-oxo-1,3-dihydro-2H-indol-2-yli dene)-1,2-dihydro-3H-indol-3-one
3H-Indol-3-one, 4,5,7-tribromo-1,2-dihydro-2-(4,5,7-tribromo-1,3-dihydro-3-oxo-2H-indol-2-ylidene)- | [Molecular Formula]
C16H4Br6N2O2 | [MOL File]
6417-56-7.mol | [Molecular Weight]
735.64 |
| Hazard Information | Back Directory | [Preparation]
(a) 3H-indol-3-one,2-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-1,2-dihydro- in chlorosulfonic acid bromide, (b) Indigo under pressure to use too much bromide bromide (With or without an inert solvent may be), its product bromide (mainly seven bromide Indigo) using bisulphite processing, remove unstable (mainly “type” bromide) bromide (GP 236902). | [Properties and Applications]
blue. Insoluble in Etanol. In concentrated sulfuric acid for blue, dilution after blue precipitation; In the basic insurance powder solution for yellow; In the acidic insurance powder solution for pale yellow. Dye aqueous solution with sodium hydroxide don’t change color.
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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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5
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3
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4
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2
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2-3
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