Copper, cresol-1,5-dinitronaphthalene-sodium polysulfide reaction products complexes Sulphur Brown 1 Sulphur Brown 10 Sulfur blue 9 (C.I. 53430) Polysulfurized 4-[(2,4-dinitrophenyl)amino]phenol

C.I. Sulphur Blue 6 (8CI,9CI) Copper, 8-amino-7-methyl-2-phenazinol-sodium sulfide (Na2(Sx)) reaction products brown complexes C.I. Sulphur Blue 4 C.I. Leuco Sulfur Brown 14