![]() The main purpose of chemical nomenclature is to disambiguate the spoken or written names of chemical compounds: each name should refer to one compound. These "color books" are supplemented by specific recommendations published periodically in the journal Pure and Applied Chemistry. Similar compendia exist for biochemistry (the White Book, in association with the IUBMB), analytical chemistry (the Orange Book), macromolecular chemistry (the Purple Book), and clinical chemistry (the Silver Book). A third publication, known as the Green Book, recommends the use of symbols for physical quantities (in association with the IUPAP), while a fourth, the Gold Book, defines many technical terms used in chemistry. The IUPAC's rules for naming organic and inorganic compounds are contained in two publications, known as the Blue Book and the Red Book, respectively. Preferably, the name should also represent the structure or chemistry of a compound.įor example, the main constituent of white vinegar is CH3COOH, which is commonly called, Acetic acid and is also its Recommended IUPAC name, but its formal, Systematic IUPAC name is Ethanoic acid. IUPAC Nomenclature ensures that each compound (and its various isomers) have only one formally accepted name known as Systematic IUPAC name, however, some compounds may have alternative names that are also accepted, known as Recommended IUPAC name which is generally taken from the Common/ Trivial/ Historical name of that compound. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC). A chemical nomenclature is a set of rules to generate systematic names for chemical compounds.
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