Photos CH3 C CH

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Ch3 c ch. Ch2 h2c ch2. H3c-[Ch(ch2)2]. H3c—Ch=Ch—ch2—Ch=ch2. H3c-ch2-ch3.
Ch2 h2c ch2. H3c-[Ch(ch2)2]. H3c—Ch=Ch—ch2—Ch=ch2. H3c-ch2-ch3.