IUPAC Name of C₁₀H₂₂ | 3-ethyl-2-methylheptane

What is the IUPAC name of C₁₀H₂₂?

The IUPAC name of C₁₀H₂₂ is 3-ethyl-2-methylheptane. It is a alkane with a 7-carbon parent chain (heptane) with substituents: ethyl at position 3, methyl at position 2.

FormulaC₁₀H₂₂
IUPAC Name3-ethyl-2-methylheptane
Compound ClassAlkane
Parent Chainheptane (7 carbons)
Substituentsethyl at C3, methyl at C2
DifficultyAdvanced

Step 1: Identify the Parent Chain

The longest continuous carbon chain in C₁₀H₂₂ contains 7 carbon atoms, giving the parent name heptane.

Step 2: Number and Name Substituents

Number the parent chain so that substituents receive the lowest possible locants. 3-ethyl-2-methylheptane has 2 substituents:

Step 3: Assemble the IUPAC Name

Combine the substituent locants and names (in alphabetical order) as prefixes to the parent chain name. If two or more identical substituents are present, use the multiplying prefixes di-, tri-, tetra-, etc. The complete IUPAC name is 3-ethyl-2-methylheptane.

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