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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 Yellow 2 |
| Synonyms: | VAT YELLOW 2;INDANTHRENE YELLOW GCN;1-d:6,5-d’)bisthiazole-6,12-dione,2,8-diphenyl-anthra(;1-d:6,5-d’]bisthiazole-6,12-dione,2,8-diphenyl-anthra[;ahcovatflavonegc;ahcovatflavonegcn;C.I.Vat Yellow;Vat Yellow 2(67300) |
| CAS: | 129-09-9 |
| MF: | C28H14N2O2S2 |
| MW: | 474.55 |
| EINECS: | 204-931-5 |
| Product Categories: | |
| Mol File: | 129-09-9.mol |
| Boiling point | 727.3±70.0 °C(Predicted) |
| density | 1.2270 (rough estimate) |
| refractive index | 1.6360 (estimate) |
| storage temp. | Room Temperature |
| solubility | Sulfuric Acid (Slightly) |
| form | Solid |
| pka | -1.86±0.20(Predicted) |
| color | Very Dark Yellow to Very Dark Brown |
| EPA Substance Registry System | C.I. Vat Yellow 2 (129-09-9) |
| Hazardous Substances Data | 129-09-9(Hazardous Substances Data) |
| Chemical Properties | Yellow-brown powder. Insoluble in water and ethanol. Turns yellow in concentrated sulfuric acid and purple in alkaline sodium hydrosulfite solution. | ||||||||||||||||||||||||||
| C.I. Vat Yellow 2 is an agent of yellow dye and can also be used for the paper dyeing[1]. | |||||||||||||||||||||||||||
| Preparation | (a) 2, 6-Diaminoanthraquinone, 1-(Trichloromethyl)benzene and sulfur in the beta backflow; (b) will be 2, 6-diamino-1, 5-dimercapto-anthraquinone and Benzaldehyde ?and sulfur condensation;(C) 2,6-Diamino-1,5-dichloroanthraquinone and Benzaldehyde?and sulfur condensation; (d) 2,6-Dibenzamidoanthraquinone?into the amino chloride [2, 6-bis (1-chloro-methylene) anthraquinone], then use sulphur and naphthalene hydrogenated sodium sulfide solution or sulfur. Note: the product contains 1,2,7,8-heterogeneous content. | ||||||||||||||||||||||||||
| 2,8-Diphenylthiazolo anthra- thiazole-6,12-quinone is preparedfrom 2,6-diaminoanthraquinone and benzaldehyde or benzotrichloride and sulfurin molten naphthalene. | |||||||||||||||||||||||||||
| Properties and Applications | green light yellow. Orange powder, insoluble in water and ethanol. In alkaline insurance powder also in stock for purple; In the acidic insurance powder also in dark orange ones for; The strong sulfuric acid to yellow. Mainly used for cotton, silk sheets, towels and the monochrome printing. Can also be used for viscose, polyester/cotton,PVA/cotton blended fabric dyeing and printing, and can also be used for the paper dyeing.
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| Raw materials | Sulfuric acid-->Ammonium hydroxide-->Sulfur-->Copper(I) chloride-->Sodium hypochlorite-->Naphthalene-->Benzotrichloride-->2,6-Diaminoanthraquinone-->2,6-diamino-1,5-dichloroanthraquinone-->Benzotrichloride-->Benzaldehyde-->N,N'-(9,10-dihydro-9,10-dioxoanthracene-2,6-diyl)bisbenzamide |
| Preparation Products | 6,12-Bis[(sodiosulfo)oxy]-2,8-diphenylanthra[2,1-d:6,5-d']bisthiazole |
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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