IUPAC Name of C₅H₁₁Br | 1-bromo-3-methylbutane
What is the IUPAC name of C₅H₁₁Br?
The IUPAC name of C₅H₁₁Br is 1-bromo-3-methylbutane. It is a halide with a 4-carbon parent chain (butane) with substituents: bromo at position 1, methyl at position 3.
| Formula | C₅H₁₁Br |
| IUPAC Name | 1-bromo-3-methylbutane |
| Compound Class | Halide |
| Parent Chain | butane (4 carbons) |
| Substituents | bromo at C1, methyl at C3 |
| Difficulty | Advanced |
Step 1: Identify the Parent Chain
The longest continuous carbon chain in C₅H₁₁Br contains 4 carbon atoms, giving the parent name butane. 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-bromo-3-methylbutane has 2 substituents:
- bromo at carbon 1
- methyl at carbon 3
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-bromo-3-methylbutane.
Interactive IUPAC nomenclature explorer with guided walkthroughs and practice quizzes on 66 molecules.
Practice Naming C₅H₁₁Br Step by Step