Images CH C O H

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Ch c o h. Эфиры ch3-o-ch2-ch3. Ch3-c-ch2-c-c=c-ch3. Ch3 Ch Ch c o h h3c ch3. Ch2=Ch-c=c-ch2-ch3.
Эфиры ch3-o-ch2-ch3. Ch3-c-ch2-c-c=c-ch3. Ch3 Ch Ch c o h h3c ch3. Ch2=Ch-c=c-ch2-ch3.

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