Cholesterol analog L39 Carbon atoms C28 gray, Hydrogen atoms H44 white, three Oxygen atoms O red Back to the tutorial 16,22-diketocholesterol FORMULA C27 H41 O3 (3BETA,9BETA,25R)-3-HYDROXY-26-IODOCHOLEST-5-ENE-16,22-DIONE Transfere Grafic File L39.tgf Integrated Scientific Information System deposit DATA: The four rings of the steroid are labeled A,B,C and D. The methyl groups labeled 18 and 19 are called angular methyl groups -CH3 , splinter methyl groups 21,26, carbonyl group16,22, iodine and double bond >C=C< between carbon atoms 5 and 6 and alcohol at carbon 3 Back to the tutorial