Skip to Content

Erythrosine Sodium

CAS registry number (Chemical Abstracts Service)


Chemical Formula


Molecular Weight


Therapeutic Category

Diagnostic agent

Chemical Names

2',4',5',7'-Tetraiodofluorescein disodium salt

Benzoic acid, 2-(6-hydroxy-2,4,5,7-tetraiodo-3-oxo-3H-xanten-9-yl)-, disodium salt

Spiro[isobenzofuran-1(3H),9'-[9H]xanten]3-one, 3',6'-dihydroxy-2',4',5',7'-tetraiodo-, disodium salt

Foreign Name

  • Erythrosin natrium (German)

Generic Names

  • Érythrosine (OS: DCF)
  • Acid red 51 (IS)
  • Aka3 (IS)
  • E 127 (IS)
  • Erythrosin (IS)

Brand Name


DCFDénomination Commune Française
ISInofficial Synonym
OSOfficial Synonym

Further information on drug naming conventions: International Nonproprietary Names.

Important Notice: The international database is in BETA release. This means it is still under development and may contain inaccuracies. It is not intended as a substitute for the expertise and judgement of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of any medication in any country is safe, appropriate or effective for you. Consult with your healthcare professional before taking any medication.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.