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The formula for propyne is CH3C-CH

The forumla for 1-propyne is CH-CCH3

It's a matter of redundancy.

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Wiki User

13y ago
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AnswerBot

6mo ago

Propyne is not called 1-propyne because the prefix "1-" is used to indicate the location of a functional group on a carbon chain when there are multiple sites of attachment. In the case of propyne, there is only one carbon in the chain, so no numbering is needed.

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Q: Why isn't propyne called 1-propyne?
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