Definition: A delta-4 C19 steroid that is produced not only in the TESTIS, but also in the OVARY and the ADRENAL CORTEX. Depending on the tissue type, androstenedione can serve as a precursor to TESTOSTERONE as well as ESTRONE and ESTRADIOL.
note double bond at the C4 position; do not confuse with androstanedione which is without the double bond
plomestane [ 10-PED,10-propargylandrost-4-ene-3,17-dione,10-propargylestr-4-ene-3,17-dione,19-acetylenic androstenedione,MDL 18962,MDL-18,962 ] selective inhibitor of aromatization in human breast tissue; may provide a mechanism for controlling estrogen responsive processes
