1,1'-[(phenylmethylene)bis[(2-ethoxy-4,1-phenylene)azo]]bis(2-naphthol)

1,1'-[(Phenylmethylene)bis[(2-ethoxy-4,1-phenylene)azo]]bis(2-naphthalenol)

2-Naphthalenol, 1,1'-[(phenylmethylene)bis[ (2-ethoxy-4,1-phenylene)azo]]bis-