Bronze orange

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A yellow-tinged red synthetic organic colorants. Bronze orange is from the same colorant family as red lake C. It is a diazo dye made by reacting beta-naphthol with the sodium salt of o-chloro-m-toluidine-p-sulfonic acid. Bronze orange is used as a colorant in plastics, rubber and printing inks.

Synonyms and Related Terms

Pigment Red 53; bronzo arancio (It.)


Carcinogen. Toxic by ingestion and inhalation.

Resources and Citations

  • Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • Monona Rossol, The Artist's Complete Health and Safety Guide, Allworth Press, New York, 1994