“suprasterol”的英文意思_释义_用法

单词

suprasterol

释义

suprasterol Biochem.|s(j)uːprəˈstɛrɒl|
[ad. G. suprasterin (A. Windaus et al. 1930, in Ann. d. Chem. CCCCLXXIII. 20): see supra- + -sterol.]
Either of two optically active polycyclic isomers (suprasterol I, suprasterol II) of C₂₈H₄₄O produced by prolonged irradiation of vitamin D.
1931Chem. Abstr. XXV. 301 Ergosterol in EtOH, subjected to the action of Hg light at about 75° for 50 hrs., gives a mixt. of suprasterol I..and II.1943Endeavour Apr. 73/2 Calciferol itself [vitamin D] was also liable to be broken down further to inactive substances—toxisterol and suprasterols I and II.1976H. Campion et al. in B. E. C. Nordin Calcium, Phosphate & Mineral Metabolism xii. 452 Ergocalciferol itself can, under prolonged irradiation, undergo irreversible photoisomerization to compounds known as suprasterol₂ I.

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