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Substance Name: Fetal hemoglobin
RN: 9034-63-3


  • The major component of hemoglobin in the fetus. This HEMOGLOBIN has two alpha and two gamma polypeptide subunits in comparison to normal adult hemoglobin, which has two alpha and two beta polypeptide subunits. Fetal hemoglobin concentrations can be elevated (usually above 0.5%) in children and adults affected by LEUKEMIA and several types of ANEMIA.
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Names and Synonyms

Name of Substance

  • Fetal hemoglobin

MeSH Heading

  • Fetal hemoglobin


  • EINECS 232-899-2
  • Fetal hemoglobin

Systematic Name

  • Hemoglobin F

Registry Numbers

CAS Registry Number

  • 9034-63-3

Other Registry Number

  • 9007-74-3

System Generated Number

  • 0009034633