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During the early 20th century, pharmacologists became aware that a relation exists between the chemical structure of a compound and the effects it produces in the body.
SMILES is a linear text string representation of the 2D chemical structure of a compound.
Moreover, the structure of a compound can be easily represented in various formats.
For example, the 2D or 3D structure of a Compound object can be attached to it as a Cargo in any chemistry file format.
The user is typically a non-computational expert but knows the structure of a compound or has a chemical id or electronic structure (e.g. MOL) file.
The IUPAC nomenclature system is designed for just such a case: a means of unambiguously describing the structure of a compound.
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The term "structure elucidation" usually refers to full de novo structure identification of a compound, including stereochemical assignments.
Feature trees were computed from the molecular structure of a known compound, and represent hydrophobic fragments and functional groups of the compound, and the way these groups are linked together.
For example, the path of the "smiles" structure cargo of a Compound whose identifier is "1" becomes "compounds/1/smiles" (Figure 1). Figure 1 The layout of a QDB archive in the local file system.
Once the structure of a new compound has been published, chemical-supply laboratories are free to synthesize it for sale, "for research purposes only".
In a Lewis structure of a covalent compound, the shared electron pair is represented by a line, so the Lewis structure of hydrogen chloride is denoted HCl:....
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