2.1.4 Nomenclature (IUPAC Rules) a Systematic Name (IUPAC Rules (IUPAC: International Union of Pure and Applied Chemistry) a 1. Determine the number of carbon in the longest continuous carbon chain----This chain is called the parent hydrocarbon 12345678 CH3CH2CHCH2 CH2 CH2CH3 3-methyl Octane CH CH3CHCH2 CH2CH3 4-methyl Octane CH.CHOCHCH2.1.4 Nomenclature (IUPAC Rules) ◼ Systematic Name (IUPAC Rules) ◼ (IUPAC: International Union of Pure and Applied Chemistry) ◼ 1. Determine the number of carbon in the longest continuous carbon chain----This chain is called the parent hydrocarbon. ◼ 1 2 3 4 5 6 7 8 ◼ CH3CH2CHCH2CH2CH2CH2CH3 3-methyl Octane ◼ CH3 ◼ CH3CHCH2CH2CH3 4-methyl Octane ◼ CH2CH2CH2CH3