mitovitovy:

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

SMILES Canonical:C1=CC=C2C(=C1)C=CC(=C2S(=O)(=O)[O-])NN=C3C(=O)C=CC4=CC=CC=C43.C1=CC=C2C (=C1)C=CC(=C2S(=O)(=O)[O-])NN=C3C(=O)C=CC4=CC=CC=C43.[Ba+2]