Exact Mass: 264.0558

Exact Mass Matches: 264.0558

Found 9 metabolites which its exact mass value is equals to given mass value 264.0558, within given mass tolerance error 4.0E-5 dalton. Try search metabolite list with more accurate mass tolerance error 8.0E-6 dalton.

2',2'-Difluorodeoxyuridine

1-[(2S,4R,5S)-3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-4-hydroxy-1,2-dihydropyrimidin-2-one

C9H10F2N2O5 (264.0558)

2,2-Difluorodeoxyuridine is a metabolite of gemcitabine. Gemcitabine is a nucleoside analog used as chemotherapy. It is marketed as Gemzar by Eli Lilly and Company. (Wikipedia)

1-[(4R,5R)-3,3-Difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione

1-[3,3-difluoro-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione

C9H10F2N2O5 (264.0558)

Difluorodeoxyuridine

5,6-difluoro-1-[4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-1,2,3,4-tetrahydropyrimidine-2,4-dione

C9H10F2N2O5 (264.0558)

1-[(2R,4S,5S)-5-[Difluoro(hydroxy)methyl]-4-hydroxyoxolan-2-yl]pyrimidine-2,4-dione

1-{5-[difluoro(hydroxy)methyl]-4-hydroxyoxolan-2-yl}-1,2,3,4-tetrahydropyrimidine-2,4-dione

C9H10F2N2O5 (264.0558)

2,2-Difluorodeoxyuridine

2,2-Difluoro-2-deoxyuridine

C9H10F2N2O5 (264.0558)

CONFIDENCE standard compound; EAWAG_UCHEM_ID 2649 2′,2′-Difluorodeoxyuridine (dFdU) is the main metabolite of Gemcitabine (HY-17026). 2′,2′-Difluorodeoxyuridine causes a concentration- and schedule- dependent radiosensitising effect in vitro[1].