Wiswesser Line Notation
Encyclopedia
Wiswesser Line Notation, also referred to as WLN, invented by William J. Wiswesser in 1949, was the first line notation
capable of precisely describing complex molecule
s. It was the basis of ICI Ltd's CROSSBOW database system developed in the late 1960's. It was also the tool used to develop the CAOCI (Commercially Available Organic Chemical Intermediates) database, the datafile from which MDL's ACD file was developed. WLN is still being extensively used by BARK Information Services.
Line notation
Line notation is a typographical notation system using ASCII characters, most often used for chemical nomenclature.Line notation is a word and symbol description of an electrochemical cell widely used in chemistry.-Chemistry:...
capable of precisely describing complex molecule
Molecule
A molecule is an electrically neutral group of at least two atoms held together by covalent chemical bonds. Molecules are distinguished from ions by their electrical charge...
s. It was the basis of ICI Ltd's CROSSBOW database system developed in the late 1960's. It was also the tool used to develop the CAOCI (Commercially Available Organic Chemical Intermediates) database, the datafile from which MDL's ACD file was developed. WLN is still being extensively used by BARK Information Services.
External links
- http://www.emolecules.com/doc/cheminformatics-101.htm
- Everything Old is New Again: Wiswesser Line Notation (WLN)