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Chemistry
121, Winter 2008, LA Tech
Rules of IUPAC Nomenclature of
Branched Alkanes
Parent name: the longest carbon chain
Substituent: a group bonded to the parent chain
Alkyl group: a substituent derived by removal of a hydrogen from an
alkane; given the symbol R- written in alphabetical order
CH4 becomes CH3- (methyl)
CH3CH3 becomes CH3CH2- (ethyl)
Prefixes: di-, tri-,
tetra-, etc. are not included in
alphabetization