OpenBabel no relation chemistry
The simplified molecular-input line-entry system (SMILES) is a specification in the form of a line notation for describing the structure of chemical species using short ASCII strings. SMILES strings can be imported by most molecule editors for conversion back into two-dimensional drawings or three-dimensional models of the molecules.
The original SMILES specification was initiated in the 1980s. It has since been modified and extended. In 2007, an open standard called OpenSMILES was developed in the open source chemistry community.See also
SMILES arbitrary target specification (SMARTS), an extension of SMILES for specification of substructural queries
SYBYL Line Notation, another line notation
International Chemical Identifier (InChI), the IUPAC's alternative to SMILES
Molecular Query Language, a query language allowing also numerical properties, e.g. physicochemical values or distances
Chemistry Development Kit, 2D layout and conversion software
OpenBabel, JOELib, OELib (conversion)
no relation