Iridium191 is a chemical compound registered under CAS number 13967-66-3, with the molecular formula Ir and a molecular weight of about 191 g/mol. It is also known as Iridium, isotope of mass 191; Iridium-191. ReagentForLab supplies Iridium191 for laboratory research and bulk production; product code 450321. Send an inquiry for purity, packaging, price and lead time.