| —— | (15R)-12,16-epoxy-8,11,13-abietatrien-11-ol | 137171-35-8 | C20H28O2 | 300.441 | 
                                                                                                                                            
                                        | —— | (15R)-12,16-epoxy-8,11,13-abietatrien-11,18-diol | 137171-33-6 | C20H28O3 | 316.441 | 
                                                                                                                                            
                                        | —— | Methanesulfonic acid (4R,4aR,8R,11bS)-11-hydroxy-4,8,11b-trimethyl-1,2,3,4,4a,5,6,8,9,11b-decahydro-10-oxa-cyclopenta[b]phenanthren-4-ylmethyl ester | 137171-34-7 | C21H30O5S | 394.532 | 
                                                                                                                                            
                                        | —— | methyl (15R)-12,16-epoxy-11-hydroxy-8,11,13-abietatrien-18-oate | 137171-32-5 | C21H28O4 | 344.451 | 
                                                                                                                                            
                                        | —— | methyl (15R)-12,16-dihydroxy-8,11,13-abietatrien-18-oate | 122040-03-3 | C21H30O4 | 346.467 |