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Molecular Formula โ†’ Structure

Type a molecular formula (e.g. C10H14N2) for structures, a full equation with = (e.g. Fe + Cl2 = FeCl3) to balance it, or just the reactants (e.g. C + O2) to predict and balance the products. Names, ions/electrons, and hydrates supported.

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Lookups for large or uncommon formulas can take a few seconds. This is an early preview.

Frequently asked

Type a molecular formula such as C6H12O6, C10H14N2 or H2O. The tool instantly shows every matching compound with its 2D structure, an interactive 3D model, the Lewis dot structure, and the SMILES string.
Yes. Many formulas are shared by several compounds called isomers — for example C2H6O is both ethanol and dimethyl ether. The tool lists each matching compound so you can compare them.
Yes. Click 3D on any result for an interactive model you can rotate and zoom, switch between ball-and-stick, space-filling and wireframe, toggle hydrogens, animate it, and download the coordinates.
SMILES is a compact text notation for a molecule's structure. Every result shows its SMILES string with a one-click copy button so you can paste it into other chemistry software.
Yes. Enter a full equation with an equals sign, like Fe + Cl2 = FeCl3, to balance it — or type just the reactants, like C + O2, to predict and balance the products.
Yes. It is completely free, runs in your browser, and needs no signup.