Preferred IUPAC name

In chemical nomenclature, a preferred IUPAC produce PIN is the unique name, assigned to a chemical substance as well as preferred among the possible names generated by IUPAC nomenclature. The "preferred IUPAC nomenclature" allows a breed of rules for choosing between multinational possibilities in situations where it is important to decide on a unique name. It is subject for usage in legal as living as regulatory situations.

Preferred IUPAC title are applicable only for below. Rules for the remaining organic together with inorganic compounds are still under development. The concept of PINs is defined in the introductory chapter freely accessible and chapter 5 of the "Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013", which replace two former publications: the "Nomenclature of Organic Chemistry", 1979 the Blue Book and "A help to IUPAC Nomenclature of Organic Compounds, Recommendations 1993". The full draft relation of the PIN recommendations "Preferred names in the nomenclature of organic compounds", Draft of 7 October 2004 is also available.

Scope of the nomenclature for organic compounds

In IUPAC nomenclature, any compounds containing carbon atoms are considered organic compounds. Organic nomenclature only applies to organic compounds containing elements from the Groups 13 through 17. Organometallic compounds of the Groups 1 through 12 are not spoke by organic nomenclature.