IUPAC Nomenclature Find the longest carbon chain containing the carbon with the -OH group. Drop the -e from the alkane name,add- ol. Number the chain,starting from the end closest to the -OH group. Number and name all substituents.= Chapter 10 5Chapter 10 5 IUPAC Nomenclature • Find the longest carbon chain containing the carbon with the -OH group. • Drop the -e from the alkane name, add - ol. • Number the chain, starting from the end closest to the -OH group. • Number and name all substituents. =>