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| OEM | OEM Services Provided |
| Feature | Good stability,Easy to Use |
| Classification | Dyes and Pigments |
| Advantage | Professional, Fast Delivery, Customizable | Samples | Apply for free，Contact us now. |
| Product Name: | Vat Brown 3 |
| Synonyms: | C.I. VAT BROWN 3;Vatbrown;Benzamide, N,N-(10,15,16,17-tetrahydro-5,10,15,17-tetraoxo-5H-dinaphtho2,3-a:2,3-icarbazole-4,9-diyl)bis-;Calcoloid Brown R.;Vat brown 3 (C.I. 69015);Vat Brown R;C.I. 69015;C.I. Pigment Brown 28 |
| CAS: | 131-92-0 |
| MF: | C42H23N3O6 |
| MW: | 665.659 |
| EINECS: | 205-044-6 |
| Product Categories: | Organics;Dyes and Pigments |
| Mol File: | 131-92-0.mol |
| Boiling point | 685.54°C (rough estimate) |
| density | 1.537 |
| refractive index | 1.7800 (estimate) |
| pka | 11.26±0.20(Predicted) |
| Water Solubility | 8.337mg/L at 20℃ |
| LogP | 4.1 at 20℃ |
| EPA Substance Registry System | C.I. Vat Brown 3 (131-92-0) |
| Provider | Language |
|---|---|
| C.I. 69015 | English |
| Chemical Properties | Dark brown powder. Insoluble in water, slightly soluble in xylene. Dark burgundy color in concentrated sulfuric acid, produces reddish brown flocculent precipitate after dilution. Reddish brown in alkaline solution of insurance powder, yellowish brown in acidic solution. | ||||||||||||||||||||||||||
| N-(5-chloro-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide and N-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide Condensation in the presence of copper, and then cyclized with sulfuric acid. | |||||||||||||||||||||||||||
| General Description | Odorless brown to dark brown powder. | ||||||||||||||||||||||||||
| Insoluble in water. | |||||||||||||||||||||||||||
| Reactivity Profile | Vat Brown 3 is incompatible with oxidizing and reducing agents. . | ||||||||||||||||||||||||||
| Flash point data for Vat Brown 3 are not available. Vat Brown 3 is probably combustible. | |||||||||||||||||||||||||||
| Flammability and Explosibility | Not classified | ||||||||||||||||||||||||||
| 4,5'-Bisbenzoylamino-1,1'-dianthrimide-2,2'carbazole , Indanthren BrownR, is prepared from 4,5'-bisbenzoylamino-1,1'-dianthrimide by ring closure in concentratedsulfuric acid . | |||||||||||||||||||||||||||
| Properties and Applications | brown. Deep red powder. Insoluble in water and Etanol, slightly soluble in Xylene for bordeaux red solution. In concentrated sulfuric acid for dark wine red, dilution to red light brown, flocks. Alkaline reduction leuco body for the color red; Acid reduction leuco for yellow brown. Is light brittle dye. To cotton affinity is poorer, less used in cotton dyeing. Suitable for direct printing, resist printing and aniline black color resist, also suitable for shallow, color of discharge. Suitable for cotton knits dyeing, more suitable for silk printing. But printing and dyeing fabric in sunlight exposure easy appear fiber brittle damage phenomenon. Can be used for viscose and wool dyeing, can also be processed into organic pigment.
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| Raw materials | Sodium chlorate-->2-AMINOANTHRAQUINONE-->1-Amino-5-benzoylaminoanthraquinone-->N-(5-chloro-9,10-dihydro-9,10-dioxo-1-anthryl)benzamide-->1-AMINO-4-BENZAMIDOANTHRAQUINONE |
| Preparation Products | Benzamide, N,N'-[5,10,15,17-tetrakis(sulfooxy)-16H-dinaphtho[2,3-a:2',3'-i]carbazole-4,9-diyl]bis-, tetrasodium salt |
Declaration: The products displayed on this website are intended exclusively for industrial applications or scientific research. They are not intended for medical, pharmaceutical, or food use. In accordance with applicable laws and regulations, purchasing organizations must hold valid qualifications and approvals.
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