Black Indanthrone

Figure 4.8 shows the aromaticity map for Black Indanthrone (Tarko 2010), a molecule having semiconductor properties (Inokuchi 1952). The presence of single bonds that are invisible on the map induces the existence of some nonaromatic cycles and the fragmentation of the molecule in five aromatic areas having low, medium. 

Although the colors of the polycycHc aromatic carbonyl dyes cover the entire shade gamut, only the blue dyes and the tertiary shade dyes, namely, browns, greens, and blacks, are important commercially. Typical dyes are the blue indanthrone [81-77-6] (40), the brown Cl Vat Brown 3 [131-92-0] (Cl 69012), (41), the black Cl Vat Black 27 [2379-81-9] (42), and the green Cl Vat Green 1 [128-58-5] (Cl 59825) (43), probably the most famous of all the polycycHc aromatic carbonyl dyes. 

Food black 1. See Brilliant black 1 Food blue 1. See Cl 73015 D C Blue No. 4 FD C Blue No. 2 Acid blue 74 Food blue 2. See FD C Blue No. 1 Acid blue 9 Food blue 3. See Acid blue 1 Food blue 4. See Indanthrone Food blue 5. See Acid blue 3 Food dye red 104. See Acid red 92 Cl 45410 Food freezant 12. See Dichlorodifluoromethane Food Grade Aloe Vera Gel Liq. Cone.. See Aloe barbadensis gel... 

Direct black 38 Direct black 114 Direct blue 6 Direct red 2 Direct red 39 Flavanthrone Indanthrone Indigo Pigment red 179 Vat red 1 dye, cotton denim Thioindigo dye, cotton silk Acid blue 93 dye, fabrics... 

Cerium sulfide Cobalt aluminum oxide D C Red No. 7 Flavanthrone Indanthrone Iron oxide black Iron oxide brown Iron oxide red Iron oxide yellow Iron oxide yellow monohydrate... 

Cl 73015 D C Orange No. 17 D C Red No. 7 D C Red No. 34 Diarylanilide yellow FDSiC Yellow No. 5 Ferric ferrocyanide Indanthrene blue Indanthrone Iron oxide black... 

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