PIGMENT RED 49:1;2-(2-Hydroxy-1-naphthylazo)-1-naphthalenesulfonic acid barium salt (2:1);lithol red ba;Barium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate];Barium bis[2-(2-hydroxy-1-naphthylazo)-1-naphthalenesulfonate];D & C Red No.12;Pigment Red 49(Ba);PR49:1 BARIUM LITHOL