IUPAC Name of C₄H₉Cl | 1-chloro-2-methylpropane
What is the IUPAC name of C₄H₉Cl?
The IUPAC name of C₄H₉Cl is 1-chloro-2-methylpropane. It is a halide with a 3-carbon parent chain (propane) with substituents: chloro at position 1, methyl at position 2.
| Formula | C₄H₉Cl |
| IUPAC Name | 1-chloro-2-methylpropane |
| Compound Class | Halide |
| Parent Chain | propane (3 carbons) |
| Substituents | chloro at C1, methyl at C2 |
| Difficulty | Intermediate |
Step 1: Identify the Parent Chain
The longest continuous carbon chain in C₄H₉Cl 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. 1-chloro-2-methylpropane has 2 substituents:
- chloro at carbon 1
- methyl at carbon 2
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 1-chloro-2-methylpropane.
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