17-(2,3-dihydroxy-1,4,5-trimethyl-hexyl)-2,3-dihydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-6-one 24-epi-Castasterone 2alphaa,3alphaa-22R,23R-tetrahydroxy-24R-methyl-5alpha-cholestan-6-one 72050-71-6 InChI=1/C28H48O5/c1-14(2)15(3)25(32)26(33)16(4)18-7-8-19-17-11-22(29)21-12-23(30)24(31)13-28(21,6)20(17)9-10-27(18,19)5/h14-21,23-26,30-33H,7-13H2,1-6H3/t15-,16+,17?,18-,19?,20?,21?,23+,24-,25-,26-,27-,28-/m1/s ergostan-6-one, 2,3,22,23-tetrahydroxy-, (2alpha,3alpha,8xi,9xi,14xi,22R,23R)- rel-(2alpha,3alpha,8xi,9xi,14xi,22R,23R)-2,3,22,23-tetrahydroxyergostan-6-one