Fig. 2. 3β-Hydroxy-Δ5-steroidal congeners identified from DPCMH24 by GC-MS/MS. The compounds in DPCMH24 were resolved on a Rtx-5MS fused-silica capillary column and analyzed by using a triple quadrupole mass spectrometer (GCMS-TQ8040). The fragmentation patterns were analyzed by using NIST 17 and Wiley 11 mass spectral libraries.
