Tags: Chemical Compound, Chemical Substance.
Rose bengal (4567-tetrachloro-2’4’5’7′-tetraiodofluorescein) is a stain. Its sodium salt is commonly used in eye drops to stain damaged conjunctival and corneal cells and thereby identify damage to the eye. The stain is also used in the preparation of Foraminifera for microscopic analysis allowing the distinction between forms that were alive or dead at the time of collection.A form of Rose Bengal is also being studied as a treatment for certain cancers and skin conditions.