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401.2 - Alternatively, the name may be formed by substitutive use of the suffix "-carboxylic acid". In the aliphatic series the numbering of the chain does not then include the carbon atom of the carboxyl group. For simple aliphatic acids the nomenclature of Rule C-401.1 is preferred (see Rule C-13.21).
Examples to Rule C-401.1
401.3 - Carboxyl groups are designated by the prefix "carboxy- '' when attached to a group named as a substituent or when another group is also present that has priority for citation as principal group.
Examples to Rule C-401.2
401.4 - When the carboxyl group is separated from a ring by a chain of carbon atoms the compound is named (a) as a derivative of the acyclic system or (b) by conjunctive nomenclature. However, the use of method (b) for benzene derivatives is restricted as described in Rule C-53.1.
Examples to Rule C-401.3
See Recommendations'93 R-5.7.1
Examples to Rule C-401.4
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