还原棕5; 2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)naphtho[2,1-b]thiophen-1(2H)-one; Vat brown 5 (C.I. 73410); C.I.73410; C.I.Pigment Brown 27; C.I.Vat Brown 5; Calcotone Brown 2R; Lithosol Fast Brown GP; Δ2,2'(1H,1'H)-Binaphtho[2,1-b]thiophene-1,1'-dione
