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SMILES to Structure

This tool converts SMILES (simplified molecular-input line-entry system) to a 2D structure.

Enter the SMILES string of the molecule in the text box below to generate the structure. You can save the result as an SVG or PNG image or export the raw coordinates and connection table to a Molfile.

Examples: aspirin, penguinone, 18-crown-6, citric acid.
Save the result as SVG, PNG, or MOL.

API access is available for this SMILES-to-structure tool. Inquire to learn more about pricing and terms.

Help improve this tool by sharing your feedback—what could be better or what you found helpful. Or share ideas for other cheminformatics tools you'd like to see here.

See also

Big Chemical Elements
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A systematic, visual guide to the chemical elements.

Periodic Table Poster, 18-Column, English-Labeled
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A periodic table of the elements.

Big Chemical Structures
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A collection of elaborate, large-format chemical structure depictions. Discover the fine details of chemical structures in their own right.

Allene Molecule Poster, 2D Structure, English-Labeled
$19.99

A poster featuring the 2D structure of the allene molecule.

Monosaccharides Poster, English-Labeled
$19.99

A poster featuring the common monosaccharides.

SMILES Parse Tree Viewer

Visualize the parse tree of a SMILES string.

Canonical SMILES Generator

Convert a SMILES string to its canonical (kekulized) form.

Awesome SMILES

A curated list of awesome resources on SMILES (simplified molecular-input line-entry system).

SMILES to Structure API

A web service for converting SMILES (simplified molecular-input line-entry system) to MOL.

IUPAC to SMILES

Convert IUPAC names to SMILES strings.

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