IUPAC Nomenclature

#Chemistry
IUPAC Abbreviation

Naming Noncyclic Molecules

$$
\begin{align}
\text{Let } C & = \text{alkyl prefix} \\N & = \text{number of minor substituents}\\M & = \text{number of major substituent} \\m & = \text{prefix of major substituent} \\n_{i} & = \text{number of }i\text{th substituents} \\p_{i} & = \text{numeric prefix for }i\text{th substituent}\\s_{i} & = \text{prefix for }i\text{th substituent} \\c_{i} & = \text{carbon number for }i\text{th substituent} \\S_{i} & = \text{stereochemistry for }i\text{th substituent if present} \\\end{align}
$$
$$
\text{Name} = (c_{1}S_{1},\ldots c_{N}S_{N})-c_{1},\ldots c_{n_{1}}-p_{1}s_{1}-\ldots -c_{N},\ldots c_{n_{N}}-p_{N}s_{N}C-c_{m_{1}},\ldots c_{m_{M}}-p_{m}m
$$

• $\displaystyle C$: Alkyl Prefixes

Example

The below molecule is named 3-ethylheptanol

CCCC(CC)CCCO

Steps

1. Name the longest carbon chain
2. . Number the chain
3. Name substituents
4. Assign a number to each substituent
5. Complete the name