Vat Brown 1, Solubilised;hexasodium naphth[2',3':6,7]indolo[2,3-c]dinaphtho[2,3-a:2',3'-i]carbazole-5,10,15,17,22,24-hexyl hexasulphate;Solubilised Vat Brown 1;Vat brown 1 solubilized (C.I. 70801);Naphth[2',3':6,7]indolo[2, 3-c]dinaphtho[2,3-a:2',3'-i]c