2-(2-hydroxy-3-(2-chlorophenyl)carbamoyl-1-naphthylazo)-7-(2-hydroxy-3-(3-methylphenyl)carbamoyl-1-naphthylazo)fluoren-9-one
2-(2-hydroxy-3-(2-chlorophényl)carbamoyl-1-naphthylazo)-7-(2-hydroxy-3-(3-méthylphényl)carbamoyl-1-naphthylazo)fluorén-9-one