Mordantblank2B, 3-Hydroxy-4-(1-hydroxy-[2]naphthylazo)-7-nitro-naphthalin-1-sulfonsaeure, 3-hydroxy-4-[(1-hydroxy-2-naphthalenyl)azo]-7-nitro-1-naphthalenesulfonic aci, 1-Hydroxy-naphthalin-<2-azo-1>-6-nitro-2-hydroxy-naphthalin-sulfonsaeure-4), Naphthol-(1)-(2 azo 1)-(6-nitro-naphthol-(2)-sulfonsaeure-(4)), 3-hydroxy-4-(1-hydroxy-[2]naphthylazo)-7-nitro-naphthalene-1-sulfonic acid, 1-(1-hydroxy-2-naphtylazo)-6-nitro-2-naphtol-4-sulfonic acid, 3-hydroxy-4-[(1-hydroxy-2-naphthyl)azo]-7-nitronaphthalene-1-sulphonic acid, 6-Nitro-2.1'-dihydroxy-[1.2']azonaphthalin-sulfonsaeure-(4), AcidchromeblackT, C.I.Mordant Black II-Saeure, C.I.Mordantblack11, 3-Hydroxy-4-[(1-hydroxynaphthalen-2-yl)azo]-7-nitro-1-naphthalenesulfonic acid, C.I. Mordant Black 11,free acid