Thymidine-13C10 (DThyd-13C10, NSC 21548-13C10) is a form of Thymidine labeled with carbon-13. Thymidine serves as a specific precursor of deoxyribonucleic acid (DNA) and is utilized as a cell synchronizing agent. It functions as a DNA synthesis inhibitor, causing cells to arrest at the G1/S boundary before DNA replication.
