It is noteworthy that for any intermediate iteromer (i.e. neither the starting substrate nor the perfunctionalized product) rnormal is always smaller than 0.37 as per the definition of normal distribution (e.g. the ratios of AB, AB2, and AB3 in Figure ). Consequently, any synthesis of intermediate iteromer in yield greater than 37% shows positive iteroselectivity. This condition is sufficient to describe a reaction as iteroselective and reporting the ite is informative but optional. Cases of perfect normal distribution are extremely rare or possibly inexistent. As such, most reported reactions are at least mildly iteroselective. Therefore, we recommend to refrain emphasizing the iteroselective character of a reaction unless "high" iteroselectivity is observed. The term iterospecificity should be avoided to describe complete iteroselectivity as recommended by IUPAC for other selectivities. 1