5-Carboxy-2′-deoxyuridine from MedChemExpress

5-Carboxy-2′-deoxyuridine is a metabolite of Trifluridine[1]. 5-Carboxy-2′-deoxyuridine is a methyl oxidation product of Thymidine that can be formed by menadione-mediated photosensitization of Thymidine[2]