** While the value of the distinct subtopics may merit multiple articles, typical Wikipedia readers would benefit from an umbrella article to clearly identify and distinguish the subtopics, as the distinctions between organic versus inorganic contexts, for example, are not intuitively obvious to those unfamiliar with chemistry.    

 ==Too technical == 
 The intro refers to a -CN group as both nitrile and cyano- without clearly distinguishing the two.  There is reference to organic versus inorganic contexts, but then a sentence like "The prefix cyano- is used in chemical nomenclature to indicate the presence of a -CN group in a molecule." seems to conflate the two.  It's important to clearly state how the intances differ and how they don't: e.g. are the structures of the groups identical but named differently only as a result of the oganic/inorganic context?