The most recent IUPAC recommendations for Nomenclature in Organic Chemistry were published in 2013 and supersede the previous 1993 recommendations, which are no longer valid. Based on the 2013 recommendations, the molecule should be referred to as propan-1-ol as described below: P-15.1.7.2.1: Alcohols are named by attaching the suffix ‘ol’ to the name of the parent hydride, with elision of the final letter ‘e’ in the parent hydride, if present. When alone in the structure, the characteristic group(s) must receive the lowest locant(s) possible, which is (are) cited immediately in front of the suffix Propan-1-ol is known as the PIN (preferred IUPAC name), that is the name that you should arrive at through proper application of the recommendations. IUPAC do allow, however, for 'retained' or 'trivial' names for compounds, so long as their use is unambiguous. Propanol , on the other hand, is