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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 Blue 42 |
| Synonyms: | Vat Blue 42;Phenol, 4-[(9-ethyl-9H-carbazol-3-yl)amino]-, reaction products with sodium sulfide (Na2(Sx));Sulfur Vat Blue GNX;Vat blue 42 (C.I. 53640);C.I. Vat Blue 42;Blue GNX;Dycosulfux Vat Blue GNX.;C.I.53640 |
| CAS: | 1327-81-7 |
| MF: | |
| MW: | 0 |
| EINECS: | 215-500-6 |
| Product Categories: | UVCBs-organic-metal salts |
| Mol File: | Mol File |
| EPA Substance Registry System | C.I. Vat Blue 42 (1327-81-7) |
| Chemical Properties | Dark blue powder. Insoluble in water, insoluble in sodium sulfide solution. Yellow in alkaline reducing solution; dark greenish yellow in acidic reducing solution. Greenish blue in concentrated sulfuric acid, produces greenish blue precipitate after dilution. | ||||||||||||||||||||||||||
| 3-(4-Hydroxyanilino)-9-ethylcarbazole in Butanol sodium polysulfide solution heating, methods and C.I. Vat Blue 43 (C.I. 53630) similarity. This indophenol is by N – ethylcarbazole and 4-Nitrosophenol in concentrated sulfuric acid, in – 23 ℃ condensation and have to (BIOS 983,65-70) o note: use with C.I. leuco sulfur dye similar method, some the structure of the dyes can be converted into the leuco compound. | |||||||||||||||||||||||||||
| Properties and Applications | blue to red light blue. In concentrated sulfuric acid to green light blue, dilution after green blue precipitation; In the basic insurance powder solution or sodium hydroxide solution for yellow.
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| Raw materials | FUMING SULFURIC ACID-->SODIUM TETRASULFIDE-->4-Nitrosophenol-->N-Ethylcarbazole-->4-[(9-ethyl-9H-carbazol-3-yl)amino]phenol-->C.I.Vatblue43-->4-Nitrosophenol |
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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