Question:
The IUPAC name of the following compound is
The IUPAC name of the following compound is
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In IUPAC nomenclature, the functional group with highest priority determines the parent name and gets the lowest possible locant.
Updated On: Jun 25, 2026
- \(5\text{-Methyl-}3\text{-aminophenol}\)
- \(3\text{-Amino-}5\text{-methylphenol}\)
- \(3\text{-Amino-}5\text{-hydroxy\ toluene}\)
- \(3\text{-Hydroxy-}5\text{-methylaniline}\)
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The Correct Option is B
Solution and Explanation
Step 1: Identify the principal functional group.
The compound contains: \[ -OH,\quad -NH_2,\quad -CH_3 \] Among these, \[ -OH \] has highest priority.
Therefore, the parent compound is: Phenol
Step 2: Number the benzene ring.
The carbon attached to \[ -OH \] is numbered as: \[ 1 \] Now numbering is done to give lowest locants to substituents.
The amino group is at: \[ 3^{rd} \] position and methyl group is at: \[ 5^{th} \] position.
Step 3: Arrange substituents alphabetically.
Substituents are: Amino and Methyl Alphabetically, Amino comes before Methyl Hence the name becomes: \[ 3\text{-Amino-}5\text{-methylphenol} \]
Step 4: Final conclusion.
Therefore, the correct IUPAC name is \[ \boxed{3\text{-Amino-}5\text{-methylphenol}} \]
The compound contains: \[ -OH,\quad -NH_2,\quad -CH_3 \] Among these, \[ -OH \] has highest priority.
Therefore, the parent compound is: Phenol
Step 2: Number the benzene ring.
The carbon attached to \[ -OH \] is numbered as: \[ 1 \] Now numbering is done to give lowest locants to substituents.
The amino group is at: \[ 3^{rd} \] position and methyl group is at: \[ 5^{th} \] position.
Step 3: Arrange substituents alphabetically.
Substituents are: Amino and Methyl Alphabetically, Amino comes before Methyl Hence the name becomes: \[ 3\text{-Amino-}5\text{-methylphenol} \]
Step 4: Final conclusion.
Therefore, the correct IUPAC name is \[ \boxed{3\text{-Amino-}5\text{-methylphenol}} \]
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