Journal:
Article Title: Identification of [ 14 C]Fluasterone Metabolites in Urine and Feces Collected from Dogs after Subcutaneous and Oral Administration of [ 14 C]Fluasterone
doi: 10.1124/dmd.108.023614
Figure Lengend Snippet: Proton NMR spectra of isolated urinary metabolite eluting at approximately 21.6 min in nonenzyme-treated urine collected between 8 and 24 h after oral dosing with [14C]fluasterone at 15 mg/kg (A), 7-α-hydroxyfluasterone (B), 7-β-hydroxyfluasterone (C), 7-β-hydroxy-17-α-dihydrofluasterone (D), and 7-β-hydroxy-17-β-dihydrofluasterone (E).
Article Snippet: Radiolabeled [4- 14 C]fluasterone (lot 9676-29-07 from Midwest Research Institute, Kansas, MO) had a radiochemical purity of approximately 97% and specific activity of 58.3 mCi/mmol.
Techniques: Proton NMR, Isolation