ChemModel - Virtual Chemistry Laboratory
Molecular Studio
Search any compound by name —in English or Spanish, even misspelled thanks to AI— or draw it, and view it in 3D with its properties. Export PNG or SDF.
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Chemical reactions
NewDraw or pick a reaction and check whether it is balanced, get the coefficients, the reaction type and each species in 3D. Basic (JSME) or advanced (Ketcher) editor with atom mapping.
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Isomerism Studio
Compare up to 4 molecules in synchronized 3D and find out whether they are constitutional, geometric, enantiomers or diastereomers. Find isomers by formula.
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Biomolecule viewer
Explore proteins, DNA and other Protein Data Bank structures, or upload your own file. Cartoon, surface, ribbon and more representations.
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Tutorials
Short step-by-step guides, in English and Spanish, to get the most out of every tool. Each tool has a ? button that takes you to its guide.
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Share and embed
Direct links, 3D viewers and reactions to embed in your website or blog, PNG images and a public JSON API.
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Ibuprofen: Why It Relieves Pain and Why It Upsets the Stomach
Ibuprofen is the world's best-selling NSAID. It reversibly inhibits COX, has better gastric tolerance than aspirin, and a more potent anti-inflammatory profile. But its chemistry also explains its renal and cardiovascular risks.
Aspirin: the Molecule of the 20th Century That Keeps Surprising
Aspirin has been on the market for over 125 years and remains one of the most studied drugs in the world. Analgesic, anti-inflammatory, antipyretic, and antiplatelet — four mechanisms, one molecule, and new uses still being discovered.
Melatonin: the Darkness Hormone and the Biological Clock
Melatonin is not a sleeping pill — it is a darkness signal. It does not directly induce sleep but synchronizes the biological clock with the light-dark cycle. That difference explains why supplements work for jet lag but not for chronic insomnia.
Chemistry in Spanish — theory, nomenclature and exercises.
Interactive chemistry tools: tables, calculators and more.
NCBI public chemical compound database.
Interactive periodic table from the Royal Society of Chemistry.
Explore chemical compounds on interactive maps by region, origin and application.