Name | Vat Brown 25 |
Synonyms | C.I.69020 Vat Brown 25 C.I.Vat Brown 25 Ostanthren Brown 5RF Indanthrene Red Brown 5RF Vat brown 25 (C.I. 69020) |
CAS | 6247-46-7 |
EINECS | 228-367-4 |
Molecular Formula | C43H25N3O7 |
Molar Mass | 695.67 |
Density | 1.2637 (rough estimate) |
Boling Point | 700.85°C (rough estimate) |
Refractive Index | 1.7790 (estimate) |
Physical and Chemical Properties | Chemical properties purplish red powder. Insoluble in water. It is purple in concentrated sulfuric acid and red after dilution. It is reddish brown in the alkaline solution of hydrosulfite and brown in the acidic solution. |
Use | Uses reduced red brown 5RF is mainly used for cotton fiber dyeing and cotton printing, good affinity, levelness in general, is one of the most red brown chromatogram, commonly used in color matching. Also used for viscose fiber, silk dyeing. |
Raw Materials | N-(5-chloro-4-methoxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide 1-AMINO-4-BENZAMIDOANTHRAQUINONE |