Ch3 ch3 ch3 ch2ci ch2 ch2ci ch2ci. Ch2=ch−ch3,ch2=ch2,ch3−ch2−ch3. ch3−c≡c−ch3, ch≡c−ch2−ch3.. (–сн2–сн=ch–ch2–. ch3-ch- ch2- ch2 - ch3 ch2- ch2 - сн3 июпак.

Ch3 ch3 ch3 ch2ci ch2 ch2ci ch2ci. Ch2=ch−ch3,ch2=ch2,ch3−ch2−ch3. ch3−c≡c−ch3, ch≡c−ch2−ch3.. (–сн2–сн=ch–ch2–. ch3-ch- ch2- ch2 - ch3 ch2- ch2 - сн3 июпак.
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