2'-Deoxyuridine. An antimetabolite that is converted to deoxyuridine triphosphate during DNA synthesis. Laboratory suppression of deoxyuridine is used to diagnose megaloblastic anemias due to vitamin B12 and folate deficiencies.

Synonyms: (beta 1-(2-Deoxyribopyranosyl))thymidine, Deoxyuridine, Uridine, 2'-deoxy-, W78I7AY22C