stigmastane 400.72318 A steroid fundamental parent that has formula C29H52. Beilstein:8170826 C29H52 CHEBI:26773 GKBHKNPLNHLYHT-LWQAOISPSA-N InChI=1S/C29H52/c1-7-22(20(2)3)12-11-21(4)25-15-16-26-24-14-13-23-10-8-9-18-28(23,5)27(24)17-19-29(25,26)6/h20-27H,7-19H2,1-6H3/t21-,22-,23?,24+,25-,26+,27+,28+,29-/m1/s1 LIPID_MAPS_instance:LMST01040000 [H][C@@]1(CC[C@@]2([H])[C@]3([H])CCC4CCCC[C@]4(C)[C@@]3([H])CC[C@]12C)[C@H](C)CC[C@@H](CC)C(C)C chebi_ontology stigmastane steroid fundamental parent