name this alkyne

ch3-ch2-ch2-ch3(c�ßCH)-CH2-CH2-CH2-CH3

is a heptyne but i just cant figure out the name . Ive tried 1-heptyne but its not the right answer :S
help?

correction ch3-ch2-ch2-ch(c� triple bond CH)-CH2-CH2-CH2-CH3

ch3-ch2-ch2-ch(c� triple bond CH)-CH2-CH2-CH2-CH3

Doesn't make sense, do you mean

CH3-CH2-CH2-C(triple bond)C-CH2-CH2-CH2-CH3

9 carbon chain so a nonane derivative. The triple bond starts at C4 so

non-4-yne (or 4-nonyne)

I meant the triple bond is at the top of the 4 ch (left to right) . This is online homework so it says the parent chain is heptyne . So i don't know if the system is giving me a wrong hint

CH3CH2CH2CH( a c on top of the ch and a triple bond on top of the c)CH2CH2CH2CH3

To name the given alkyne, we need to identify the parent chain and the location of the triple bond. Let's go step by step:

1. Count the number of carbon atoms in the longest continuous chain that contains the triple bond. In this case, there are seven carbon atoms (hept-).

2. Number the carbon atoms in the chain, starting from the end nearest to the triple bond. The triple bond should get the lowest number possible. In this case, we start numbering from the left side to give the triple bond the lowest number.

CH3 - CH2 - CH2 - CH3 - C≡CH - CH2 - CH2 - CH2 - CH3
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Triple bond (C≡CH)

3. Based on the numbering above, we can see that the triple bond is at the fourth carbon atom.

4. Finally, combine the name of the parent chain with the suffix "-yne" to indicate that it is an alkyne. In this case, the parent chain is hept- and the triple bond is at the fourth carbon atom.

Therefore, the name of the given alkyne is 4-heptyne.