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Substance Name: Ibritumomab tiuxetan [USAN:INN:BAN:JAN]
RN: 206181-63-7
UNII: 4Q52C550XK


  • 90Y-labeled anti-CD20 monoclonal antibody for radioimmunotherapy for patients with relapsed B-cell non-Hodgkin's lymphoma.

Molecular Formula

  • Unspecified

Molecular Weight

  • 570.5968

Classification Codes

  • Antineoplastic (Monoclonal Antibody)
  • Treatment of Non-Hodgkin's B-Cell Lymphoma
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Links to Resources

Names and Synonyms

Name of Substance

  • Ibritumomab tiuxetan
  • Ibritumomab tiuxetan [USAN:INN:BAN:JAN]


  • BAY 86-5128
  • BAY86-5128
  • Ibritumomab
  • Ibritumomab tiuxetan
  • IDEC-129
  • IDEC-Y2B8
  • IDEC-Y2B8 IDEC-129
  • Immunoglobulin G1 (mouse monoclonal IDEC-Y2B8 gamma1-chain anti-human antigen CD20), disulfide with mouse monoclonal IDEC-Y2B8 K-chain, dimer, N-(2-(bis(carboxymethyl)amino)-3-(p-isothiocyanatophenyl)propyl)-N-(2-(bis(carboxymethyl)amino)propyl)glycine conjugate. Molecular weight is approximately 1500 daltons
  • SHL 749
  • UNII-4Q52C550XK
  • Yttrium-90-ibritumomab tiuxetan
  • Zevalin

Systematic Name

  • Immunoglobulin G1, anti-(human CD20 (antigen)) (mouse monoclonal IDEC-Y2B8 gamma1-chain), disulfide with mouse monoclonal IDEC-Y2B8 kappa-chain, dimer, N-(2-(bis(carboxymethyl)amino)-3-(4-isothiocyanatophenyl)propyl)-N-(2-(bis(carboxymethyl)amino)propyl)glycine conjugate

Registry Numbers

CAS Registry Number

  • 206181-63-7


  • 4Q52C550XK

System Generated Number

  • 0206181637

Structure Descriptors