Synonyms:

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

Canonical SMILES: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]