Foundation
Chemistry Foundation
Nomenclature of Organic Compounds
Question

What is the name of the compound CH3CH2CH(CH3)CH2OH ?

2-methylbutanol
3-methylbutanol
2-methylpentanol
Pentanol
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Solution

The name of the compound is 2-methyl butanol. 

Since –OH is the only functional group in this compound, we will start numbering from carbon nearest to the –OH group. Then find the longest carbon chain that is 4 carbons means the word root is "but" and methyl is substituted at 2nd position. Hence, the name would be 2-methyl butanol.
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