3d image of iodoestradiol skeletal formula

iodoestradiol synthetic steroidal potent estrogen scientific research estradiol affinity estriol radiolabeled estrogen receptor imaging radioactive tracer radiotracer label radiotracing radioisotope feeding estrogenic activity 16a-iodo-e2 rendering hormone hormonal therapy replacement function action endocrine endocrinology level prohormone analogue substance matter material compound component agent precursor synthesis reaction production molecule molecular structural structure formula skeletal geometry ball stick