What is the IUPAC name for the compound CH3-CH(OH)-CH2-COOH?

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Question: What is the IUPAC name for the compound CH3-CH(OH)-CH2-COOH?

Options:

Correct Answer: 2-Hydroxybutanoic acid

Solution:

The compound has a hydroxyl group on the second carbon of a four-carbon chain with a carboxylic acid, making it 2-Hydroxybutanoic acid.

What is the IUPAC name for the compound CH3-CH(OH)-CH2-COOH?

What is the IUPAC name for the compound CH3-CH(OH)-CH2-COOH?

Step 1: Identify the longest carbon chain in the compound. The longest chain has four carbon atoms (butane).
Step 2: Identify the functional groups present. There is a hydroxyl group (-OH) and a carboxylic acid group (-COOH).
Step 3: Number the carbon chain starting from the end closest to the carboxylic acid group. This gives the carboxylic acid the lowest possible number.
Step 4: The carbon chain is numbered as follows: 1 (COOH), 2 (OH), 3, 4.
Step 5: The hydroxyl group is on the second carbon, so we name it 2-hydroxy.
Step 6: Combine the name of the functional groups with the name of the carbon chain. The full name is 2-hydroxybutanoic acid.

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