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Substance Name: Lesofavumab [USAN]
RN: 1807960-57-1


  • A human monoclonal immunoglobulin G1 (IgG1) antibody that binds to a highly conserved region of the hemagglutinin protein of influenza B virus.

Molecular Formula

  • C6552-H10094-N1714-O2042-S48

Classification Code

  • Treatment of Influenza B Infection
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Links to Resources

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Names and Synonyms

Name of Substance

  • Lesofavumab
  • Lesofavumab [USAN]


  • Immunoglobulin G1, anti-(influenza B virus viral hemagglutinin) (human monoclonal MHAB5553A heavy chain), disulfide with human monoclonal MHAB5553A light chain, dimer
  • Lesofavumab
  • Lesofavumab [INN]
  • MHAB5553A
  • RG70026
  • RO7045557
  • UNII-J8O0SI025W

Registry Numbers

CAS Registry Number

  • 1807960-57-1


  • J8O0SI025W

System Generated Number

  • 1807960571