17α-Epimer of testosterone; a biologically inactive steroid found in testes and ovaries; may be a metabolite of 4-androstene-3,17-dione and a precursor of 17α-estradiol.
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Fragmentation studies, using the El-ionization, high-resolution acquisition mode, of testosterone analogs (6-hydroxytestosterone, 5[alpha]-androstan-3[alpha]-ol-17-one, 5[alpha]-androstan-3[beta],17[beta]-diol, and 17-epitestosterone) derivatized into the corresponding TMS-enol-TMS-ethers allowed us to correlate specific fragments with precise chemical structures: