17-N-allylamino-17-demethoxygeldanamycin
(17-N-A-lul-uh-MEE-noh-17-DEE-meh-THOK-see-gel-DA-nuh-MY-sin)
A substance being studied in the treatment of cancer. It is made from an antibiotic called geldanamycin. 17-N-allylamino-17-demethoxygeldanamycin helps cause the breakdown of certain proteins in the cell, and may kill cancer cells. It is a type of antineoplastic antibiotic and a type of HSP90 inhibitor. Also called 17-AAG and tanespimycin.