Ch3 c c ch3 koh. Ch2=c(ch3) - ch=ch-ch-c=o-oh. ch2oh ch2oh ch3cooh. oh-ch2-ch3-ch2-oh. ch3-o-ch2-ch3.

Ch3 c c ch3 koh. Ch2=c(ch3) - ch=ch-ch-c=o-oh. ch2oh ch2oh ch3cooh. oh-ch2-ch3-ch2-oh. ch3-o-ch2-ch3.
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