| Identification | Back Directory | [Name]
Vat Brown 25 | [CAS]
6247-46-7 | [Synonyms]
C.I.69020
Vat Brown 25
C.I.Vat Brown 25
Ostanthren Brown 5RF
Trianthrene Brown 5RF.
Indanthrene Red Brown 5RF
Vat brown 25 (C.I. 69020)
C.I.Vat Brown 25:C.I.69020
Vat Brown 25 ISO 9001：2015 REACH
Benzamide, N,N-(10,15,16,17-tetrahydro-1-methoxy-5,10,15,17-tetraoxo-5H-dinaphtho2,3-a:2,3-icarbazole-4,9-diyl)bis-
N,N'-(10,15,16,17-tetrahydro-1-methoxy-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-4,9-diyl)bis(benzamide)
Benzamide, N,N'-(10,15,16,17-tetrahydro-1-methoxy-5,10,15,17-tetraoxo-5H-dinaphtho[2,3-a:2',3'-i]carbazole-4,9-diyl)bis- (8CI,9CI) | [EINECS(EC#)]
228-367-4 | [Molecular Formula]
C43H25N3O7 | [MOL File]
6247-46-7.mol | [Molecular Weight]
695.674 |
| Chemical Properties | Back Directory | [Boiling point ]
700.85°C (rough estimate) | [density ]
1.2637 (rough estimate) | [refractive index ]
1.7790 (estimate) | [pka]
11.22±0.20(Predicted) |
| Hazard Information | Back Directory | [Chemical Properties]
Purple-red powder. Insoluble in water. Purple in concentrated sulfuric acid, red upon dilution. Reddish-brown in alkaline sodium hydrosulfite solution, brown in acidic solution. | [Uses]
Vat Brown 25 is mainly used for dyeing cotton fibers and printing cotton fabrics. It has good affinity, moderate leveling properties, and is the reddest shade in the brown spectrum, often used for color matching. It is also used for dyeing viscose fibers and silk. | [Preparation]
N-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide and N-(5-chloro-4-methoxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide?condensation, cyclization and then. | [Properties and Applications]
red light brown. Purple red powder. Insoluble in water. In concentrated sulfuric acid for purple solution, after dilution to red. Alkaline reduction leuco for red brown; Acid reduction leuco for brown. Used for cotton suspension pad dyeing, good levelness. Generally used in jig dyeing color matching, but also can be used for polyester/cotton, Fiber/cotton blended fabric, silk and viscose dyeing.
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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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5
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7
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5
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5
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5
|
5
|
|
AATCC
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5
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5
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7-8
|
5
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5
|
|
|
|
|
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