Sterol sulfates from the Far Eastern holothurianCucumaria japonica

A chloroform-methanol extract of the musculocutaneous sac of the Far-Eastern holothurianC. japonica has yielded a fraction of sterol sulfates (13% of the weight of the extract, 0.8% of the weight of the dry biomass), the main components of which were derivatives of cholest-5-en-3-ol, 24-methylene-, 24-ethyl-, and 24-ethylidenecholest-5-en-3-ols, 5-cholestan-3-ol, and 24-methyl- and 24-methylene-5-cholesten-3-ol; among the minor components were found the sulfates of 24-ethyl-5-cholestan-3-ol of cholesta-5,22-dien-3-ol, of a ⁵-C₃₀ sterol, and also of dienic and trienic C₂₆ sterols.Institute of Immunology, Ministry of Health of the USSR, Moscow. M. M. Shemyakin Institute of Bioorganic Chemistry, Academy of Sciences of the USSR, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 470–477, July–August, 1984.