Соединение ch3 ch2 c ch2. Ch3-ch-c=c-ch-ch3. ch3 ch ch3 ch ch3 ch3. ch3-c-ch2-ch3. ch3 c c ch ch3 ch3.

Соединение ch3 ch2 c ch2. Ch3-ch-c=c-ch-ch3. ch3 ch ch3 ch ch3 ch3. ch3-c-ch2-ch3. ch3 c c ch ch3 ch3.
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