Indanthrene

Its chief outlet is as an intermediate in the preparation of flavanthrene and indanthrene. 

Anthraquinone is of great technical importance, as many of its derivatives form valuable dyes notable among these are the hydroxy-derivatives (alizarin, etc.)y the amino-derivatives (indanthrene, etc.) and the sulphonic acids. 

Supplement XXV, 2nd 1936 3458-3793 Hydroxy-indanthrene, 102. Carboxylic acids Diazoacetic acid, 109. 

D C Blue No. 9 (12) Indanthrene Blue Carbanthrene Blue Cl Vat Blue 6 [130-20-1] 69825 cotton and silk sutures (including those for ophthalmic use) only 2.5% (w/w) max dmgs in general... 

Indanthrene Brilliant, Green, B, FB, Badische Anilin-und Soda-Fabric AG (BASF)... 

Indanthrene Khaki GG (158) is prepared from the corresponding pen tan th rim i de with aluminum chloride or aluminum chloride—sodium chloride... 

Erio black Hydron blue Indanthrene violet, R.R. lonamine, A.S. 

Several classes of large molecules containing indolocarbazoles as structural subunits are also worth some attenticm, although an exhaustive account of the chemistry and properties of these systems is beyond the scope of this review. The ring system of indolo[2,3-c]carbazole (5) is present in several dyes known since the 1940s, such as Indanthren Khaki GG (257) and Vat Brown 1 (258). In... 

Incamat, a. flesh-colored, inchromiereu, v.t. (Metal.) chromize. Indanthren-blau, n. indanthrene blue, -gdb, n. indanthrene yellow. 

Vat dyes of the highest quality have derived their name from indanthrone, a blue compound, which was originally known as Indanthrene Blue. The compound has been used for a long time as a pigment and is registered in the Colour Index as Pigment Blue 60, 69800 (91). 

Dyestuffs and pigments Cellulosic vat dye Indanthren 6,15-Dihydro-5,14,18- anthrazinetetrone Dystar, Germany... 

The kinetic spectra of Aurine, Indanthrene Yellow, and Golden-Orange are similar to those of Chlorophyll. 

Reaction XX. (a) Action of Metallic Zinc on a Mixture of an Aromatic Hydrocarbon and a Derivative of Phthalyl Chloride.—This is a method of synthesising anthraquinone and its derivatives, and hence a method of elucidating their structure, and also the structure of anthracene. Otherwise the method is not of importance, but it may be in the future, since anthraquinone is in great and increasing demand for the production of vat-dyestuffs, such as indanthrene phthalyl chloride can... 

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