Ergosterol Lipid Carbon atoms C28 gray, Hydrogen atoms H48 white, two Oxygen atom O red Back to the tutorial.

Transfere Grafic File ERGOH.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 and
double bond >C=C< between carbon atoms 5,6; 7,8; 22,23 and alcohol at carbon 3
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