C.I. Vat Black 23 VAT BLACK 27 4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl- Vat Black 32 4,4'-dibenzamido-1,1'-iminodianthraquinone C.I. Vat Black 19 Benzamide, N,N'-[(9,10-dihydro-2-methyl-9,10-dioxo-1,3-anthracenediyl)bis[imino(9,10-dihydro-9,10-dioxo-4,1-anthracenediyl)]]bis- Vat Black 25 Vat Black 8 Vat Black 9 Vat Black 29 Vat Black 38 VAT BLACK 27 vat black 16