C.I. 70802; C.I. 70800; C.I. Vat Brown 1; C.I. Vat Brown 44; 6,23-dihydrodinaphtho[2,3-a:2',3'-i]naphtho[2',3':6,7]indolo[2,3-c]carbazole-5,7,12,17,22,24-hexone; 6,13-dihydrodinaphtho[2,3-a:2',3'-i]naphtho[2',3':6,7]indolo[2,3-c]carbazole-5,7,12,14,19,24-hexone; Vat Brown Br; C.I.Vat Brown 1