What is the IUPAC name for the following compound? A. 4-benzylbutanal B. 3-phenylpropanal C. 3-benzylpropanal D. 4-phenylbutanal E. 2-benzylethanal Ketones - When naming the parent, the suffox "-one" indicates the presence of a ketone group. - When choosing the parent of an ketone, identify the longest chain that includes the carben atom of the ketone group. - Number so the ketone group is the lowest What is the IUPAC name for the following compound? A. 2,4-dimethyl-2-pentenone B. 2,5-dimethylcyclopenten-3-one C. 2,4-dimethylyyclopent-2-enone D. 3,5-dimethylcyclopent-2-enone E. 2-methy-5-methylcyclopent-2-enone