| —— | (8S,10S,13S,14S,17S)-17-hydroxy-10,13-dimethyl-1,2,6,7,8,10,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[i]phenanthren-3-one-1,2,3,4-13C4 | 101025-49-4 | C19H26O2 | 290.37 | 
                                                                                                                                            
                                        | —— | <1,2,3,4-13C> 4,9(11)-androstadiene-3,17-dione | 101025-50-7 | C19H24O2 | 288.354 | 
                                                                                                                                            
                                        | —— | (3S,3aS,9aS,9bS)-3-(tert-butoxy)-3a-methyl-6-(2-(2-(methyl-13C)-1,3-dioxolan-2-yl-2-13C)ethyl-1,2-13C2)-1,2,3,3a,4,5,8,9,9a,9b-decahydro-7H-cyclopenta[a]naphthalen-7-one | 101025-41-6 | C24H38O4 | 394.519 | 
                                                                                                                                            
                                        | —— | (3S,3aS,6R,9aS,9bS)-3-(tert-butoxy)-3a,6-dimethyl-6-(2-(2-(methyl-13C)-1,3-dioxolan-2-yl-2-13C)ethyl-1,2-13C2)-1,2,3,3a,4,6,8,9,9a,9b-decahydro-7H-cyclopenta[a]naphthalen-7-one | 101025-48-3 | C25H40O4 | 408.546 |