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3D molecule models

Interactive ball-and-stick and space-filling models of common molecules, from water and methane to glucose, caffeine and ATP. Each page explains the molecule's shape, bond angles, polarity, composition and uses.

Quick answer: tap any molecule to open its rotatable 3D model. To look up a different molecule, use the 3D molecular model viewer.

Inorganic & small molecules

Water structureWaterH2O · 18.015 g/molAmmonia structureAmmoniaNH3 · 17.031 g/molCarbon dioxide structureCarbon dioxideCO2 · 44.009 g/molOxygen structureOxygenO2 · 31.999 g/molOzone structureOzoneO3 · 47.998 g/molHydrogen chloride structureHydrogen chlorideHCl · 36.46 g/mol

Hydrocarbons & fuels

Methane structureMethaneCH4 · 16.043 g/molPropane structurePropaneC3H8 · 44.1 g/molBenzene structureBenzeneC6H6 · 78.11 g/mol

Alcohols & solvents

Methanol structureMethanolCH4O · 32.042 g/molEthanol structureEthanolC2H6O · 46.07 g/molAcetone structureAcetoneC3H6O · 58.08 g/mol

Sugars & carbohydrates

Glucose structureGlucoseC6H12O6 · 180.16 g/molSucrose structureSucroseC12H22O11 · 342.3 g/molFructose structureFructoseC6H12O6 · 180.16 g/mol

Biomolecules

Glycine structureGlycineC2H5NO2 · 75.07 g/molGlycerol structureGlycerolC3H8O3 · 92.09 g/molCitric acid structureCitric acidC6H8O7 · 192.12 g/molVitamin C (ascorbic acid) structureVitamin C (ascorbic acid)C6H8O6 · 176.12 g/molATP (adenosine triphosphate) structureATP (adenosine triphosphate)C10H16N5O13P3 · 507.18 g/mol

Flavours & natural products

Vanillin structureVanillinC8H8O3 · 152.15 g/mol

Drugs & medicines

Caffeine structureCaffeineC8H10N4O2 · 194.19 g/molAspirin structureAspirinC9H8O4 · 180.16 g/mol

Neurotransmitters & hormones

Serotonin structureSerotoninC10H12N2O · 176.21 g/molAdrenaline (epinephrine) structureAdrenaline (epinephrine)C9H13NO3 · 183.2 g/molMelatonin structureMelatoninC13H16N2O2 · 232.28 g/mol

Steroids & lipids

Cholesterol structureCholesterolC27H46O · 386.7 g/molTestosterone structureTestosteroneC19H28O2 · 288.4 g/molEstradiol (estrogen) structureEstradiol (estrogen)C18H24O2 · 272.4 g/mol

Drawing structures for your notes? MolDraw is a free online chemical structure editor for molecules, reactions and lab diagrams.

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Frequently asked questions

What is a molecular model?

A physical or digital 3D representation of a molecule showing its atoms and bonds. Ball-and-stick models show bonds and angles clearly. Space-filling models show the true relative size and overall shape.

What do the colours in a molecular model mean?

Most kits and viewers use CPK colours: carbon grey or black, hydrogen white, oxygen red, nitrogen blue, chlorine green, sulfur yellow and phosphorus orange.

Where do the 3D coordinates come from?

Each model uses the computed 3D conformer published by PubChem (NIH), so bond lengths and angles are realistic.

Can I view a molecule that is not listed?

Yes. Open the 3D molecular model viewer and type any name, SMILES or PubChem CID, or draw one in Build a Molecule.

Related tools

3D molecular model viewerAny moleculeBuild a moleculeMolecule builderVSEPR calculatorShapes & anglesMolecule structure referencesIdentifiers & properties