IUPAC Name of C₃H₇Cl | 2-chloropropane

What is the IUPAC name of C₃H₇Cl?

The IUPAC name of C₃H₇Cl is 2-chloropropane. It is a halide with a 3-carbon parent chain (propane) with a chloro at position 2 substituent.

FormulaC₃H₇Cl
IUPAC Name2-chloropropane
Compound ClassHalide
Parent Chainpropane (3 carbons)
Substituentschloro at C2
DifficultyIntermediate

Step 1: Identify the Parent Chain

The longest continuous carbon chain in C₃H₇Cl contains 3 carbon atoms, giving the parent name propane. The parent chain is numbered to give the halogen substituent the lowest possible locant.

Step 2: Number and Name Substituents

Number the parent chain so that substituents receive the lowest possible locants. 2-chloropropane has one substituent:

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 2-chloropropane.

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