Skip to main content
An official website of the United States government
NIH Websites Are Changing
Per Executive Order 14434, federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.

In 111 monoclonal antibody B3

A radioimmunoconjugate of monoclonal antibody (MoAb) B3 labeled with Indium 111 (In-111). MoAb B3 is a murine MoAb that recognizes a Lewis Y carbohydrate antigen present on the surface of many carcinomas. This radioimmunoconjugate emits gamma radiation and X-Ray photons that can be captured by gamma camera, allowing imaging of Lewis Y expressing tissues.
Synonym:111 In-B3
indium In 111 monoclonal antibody B3
Search NCI's Drug Dictionary