indium (111in) altumomab pentetate indium (111in) altumomab pentetate indium (111in) altumomab pentetate (inn) (usp, indium in 111 altumomab pentetate; trade name hybri-ceaker) is a mouse monoclonal antibody linked to pentetate which acts as a chelating agent for the radioisotope indium-111. the drug is used for the diagnosis of colorectal cancer but has not been approved for use. indium (111in) altumomab pentetatemonoclonal antibodytypewhole antibodysourcemousetargetceaclinical dataatc codenoneidentifierscas number156586-92-4 nchemspidernoneuniiat2nu9vq6m ny (what is this?) (verify)