Abstract: | Low- and high-resolution mass spectra and defocusing and DADI spectra of samples of -sitosterol isolated from various plant material have been studied. The spectral information obtained has shown the presence in samples of -sitosterol studied of minor accompanying components which have been identified as stigmasterol, campesterol, and cholesterol.Institute of Bioorganic Chemistry, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 81–85, January–Feburary, 1981. |