3-aminopyridine-2-carboxaldehyde thiosemicarbazone
(3-uh-MEE-noh-PEER-ih-deen-2-KAR-bok-SAL-deh-hide THY-oh-SEH-mee KAR-buh-ZONE)
A substance being studied in the treatment of cancer. It is a type of ribonucleotide reductase inhibitor. Also called 3-AP and Triapine.