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Vat Yellow 4
Vat Yellow 4
/ CAS : 128-66-5| Appearance | Yellow powder, insoluble in water, soluble in xylene, nitrobenzene and tetrahydronaphthalene, slightly soluble in acetone, ethanol, benzene, chloroform, toluene, pyridine and o-chlorophenol. In concentrated sulfuric acid, it shows red and green lotus color, and forms orange precipitation after dilution. It is jujube red in alkaline powder reducing solution and golden yellow in acid solution. | Formula | C24H12O2 | Molecular Mass | 332.35100 |
| HS | 29143990 | UN | 0.0 | DG Class | 0.0 |
| Synonyms | Dibenzochrysenedione; C.I. Vat Yellow 4; Tyrion Yellow; 7,14-Dihydrodibenzo[B,I]Pyren-7,14-Dione; Dibenzopyrenequinnone; Tinon Golden Yellow; Dibenzo[B,Def]Chrysene-7,14-Dione; Dibenzo<A,H>Pyrene-7,14-Dione; Dibenzpyrenequinone; Helanthrene Yellow; Golden Yellow Zhkh; Vat Yellow Zhkh; Yellow Gk Base; Dibenzo<B,I>Pyrene-7,14-Quinone; Vat Golden Yellow; Vat Yellow 4 (C.I. 59100); C.I.59100; Indanthren Printing Yellow Gok; Tinon Golden Yellow Gk; 2,3,7,8-Dibenzopyrene-1,6-Quinone; Ahcovat Printing Golden Yellow; Ahcovat Printing Golden Yellow Gk | ||||
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