SYBYL Line Notation (SLN): A Versatile Language for Chemical Structure Representation†

SYBYL Line Notation (SLN) is an ASCII language used to represent chemical structures, including common organic molecules, macromolecules, polymers, and combinatorial libraries. SLN is also used to express substructural (2D) queries and includes a complete facility for Markush representation. This concise language is ideal for database storage of chemical entities as well as for network communication of structures and queries.