451.2 - Radicals RC(=X)-, where =X is =NH, =N-NH2, or =NOH, are formed from the names of the corresponding acids RC(=X)-OH by changing "-ic" of the endings given in Table X to "-oyl".
Examples to Rule C-451.1
451.3 - The name of an acid in which the hydroxyl group of the carboxyl group has been changed to -NH-OH is formed by changing the ending "-oic acid '' of the systematic name of the carboxylic acid, or "-ic acid '' of the trivial name, to "-ohydroxamic acid", or "-carboxylic acid'' to "-carbohydroxamic acid''. (However, see also Rule C-841.3.)
Examples to Rule C-451.2
451.4 - The hypothetical compound HN=C(OH)2 is named carbonimidic acid, and the bivalent radical >C=NH is named carbonimidoyl.
Examples to Rule C-451.3
See Recommendations'93 R-5.7.1
Example to Rule C-451.4
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