The structural formula of a compound is a drawing that indicates which atoms are connected to which connectivities. Several kinds of structural formulas are used to represent organic compounds: dot formulas (Lewis structures), dash formulas, condensed formulas, combination (of dash and condensed) formulas, and bond-line formulas."A Structural Formula is a two dimensional structural representation that shows how the various atoms in a molecule are bonded to each other."
The chemical formula showing the composition and structure of a molecule. The atoms are represented by symbols and the structure is indicated by showing the relative positions of the atoms in space and the bonds between them.
Two types of Structural Formula are depicted below.
An Expanded Structural Formula is a structural formula that show all atoms in a molecule and all bonds connecting the atoms. A Condense Structural Formula is that it uses grouping of atoms in which central atoms and the atoms connected to them are written as a group to convey molecular structural information.