32P is a radioactive isotope of phosphorus with relative atomic mass 31.973907 and half-life of 14.26 days.
32P is a radioactive isotope of phosphorus with beta particle-emitting radiocytotoxic activity.
Emitted by 32P, beta particles directly damage cellular DNA and, by ionizing intracellular water to produce several types of cytotoxic free radicals and superoxides, indirectly damage intracellular biological macromolecules, resulting in tumor cell death.
Indeed, its longer life time and especially its less energetic β spectrum make its manipulation simpler in the laboratory.
In the medical field, 33P has been used in the treatment of arterial stenosis but is no longer indicated at this time.