title: The crystal structure of 3 beta-hydroxy-4 alpha, 23R, 24R-trimethyl-5 alpha-cholestane (23R, 24R-5 alpha-dinostanol) from dinoflagellates.
abstract: An x-ray crystal structure determination of a dinostanol from the dinoflagellate Protoceratium reticulatum and zooxanthellae from Orbulina universa was completed. The novel sterol was shown to be 3 beta-hydroxy-4 alpha, 23R,24R-trimethyl-5 alpha-cholestane and may be one of the molecular fossils found in sediment cores from the deepest Black Sea trench.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002777:Cholestanols; D008958:Models, Molecular; D014961:X-Ray Diffraction
chemical_list: D002777:Cholestanols; C033070:dinostanol