SMILES Notation Explained (+ Free SMILES to 3D Converter)

By BioDockify Computational Research Team · September 11, 2026 · Tools & Comparisons

SMILES notation explained for pharmacy students — reading and writing SMILES, atoms, bonds, branches, rings, stereochemistry, converting SMILES to 3D for docking, and common errors.

Read the complete article with tables, code and references on BioDockify.

Key References

• Weininger, D. SMILES, a chemical language and information system. J. Chem. Inf. Comput. Sci. 28, 31-36 (1988).
• OpenSMILES specification — opensmiles.org.

Scope & Limitations

SMILES encodes connectivity, not conformation Stereochemistry must be explicit where it matters