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are called "nitriles" or "cyanides" generically and may
be named substitutively in a manner closely related to that for acids and other related compounds. Acyclic mono- and dinitriles in which 
may be considered to have replaced the
group(s) of an acid named by an "-oic acid" or "-dioic acid" suffix are named by adding the suffix "-nitrile" or "-dinitrile" to the name of the hydrocarbon from which the acid name
was derived.
Nitriles in whichExamples to R-5.7.9.1
may be considered to have replaced of an acid with a retained trivial name (see R-9.1, Table 28(a)) are named by changing the
"-ic acid", or "-oic acid" ending of the name of the acid to "-onitrile".
Nitriles in whichExamples to R-5.7.9.1
may be considered to have replaced the group(s) of an acid named by a "-carboxylic acid" suffix are named by replacing that suffix with
"carbonitrile".
Functional class names for nitriles of the general structureExamples to R-5.7.9.1
are formed by citing the prefix name for the group R followed by the class name "cyanide" as a separate word. Compounds
with a general structure such as 
and 
may be named similarly.
When a group is present that has priority for citation as the principal characteristic group or when allExamples to R-5.7.9.1
groups cannot be expressed as the principal
characteristic group, groups are described by the prefix "cyano-".
R-5.7.9.2 Cyanide-related compounds. Compounds containing a group X listed in the first column of Table 16 are named by methods analogous to those described for halides (see R-5.3.1); the functional class names given in the second column of the Table are used in place of "halide" or the prefixes given in the third column of the Table in place of "halo-".Examples to R-5.7.9.1
R-5.7.9.3 Nitrile oxides. Compounds with the general structureExamples to R-5.7.9.2
have the generic name "nitrile oxides". In specific cases, the class name "oxide" is added
as a separate word after a nitrile name, but not a cyanide name.
Example to R-5.7.9.3
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