The proliferation of new chemicals has given rise to a number of systems for naming them. The lack of a unified system of nomenclature has caused confusion in many areas, for example in purchase of chemicals, or in interpreting legislation.
Chemical Nomenclature Advisory Service (CNAS) specialises in the use of a logical and unambiguous form of nomenclature, based on the recommendations of the International Union of Pure and Applied Chemistry (IUPAC). CNAS can provide (inter alia) names for notification schemes, check chemical nomenclature in documents and also offer advice on the use of different systems of nomenclature. This may include use of: