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Structo
An Android editor for drawing chemical structures, reaction schemes, and mechanisms with touch controls.
Free. 11 of 65 checklist features confirmed.
Main canvas
Needs Android
Needs Android
Default drawings
Needs Android
Caffeine
Needs Android
Paclitaxel
Needs Android
Cholesterol in 3D
Facts
- Runs on
- Android
- License
- Free Android app; source license undisclosed.
- Price
- Free
- Relies on
- Not established. Vendor listing and privacy policy do not disclose editor provenance or chemistry libraries.
- Main language
- Not published
- Other languages
- Not established
- Renderer
- Not established
- Third-party licenses
- Not established
- Only an Android release is documented.
- Export resolution and vector output are unverified.
- Offline operation is unverified.
Features
- Tested by running it
- Seen in the app
- The manual says yes
- Partly, with the reason shown
- Not supported
- Not established, which is not the same as no
Select a mark for its proof. A filled mark opens our screenshot, or the manual if the check left nothing to picture. A ring opens the manual.
Drawing structures
- Yes, according to the manual: Developer screenshots show single, double, and triple bond controls. Opens the cited page.Single, double and triple bondsDeveloper screenshots show single, double, and triple bond controls.play.google.com
- Not established: Wavy bonds unverified.Wedge, hash and wavy bondsWavy bonds unverified.
- Not establishedDative, hydrogen and quadruple bonds
- Not establishedChoose double-bond side
- Not established: Aromatic ring tools unverified.Ring toolsAromatic ring tools unverified.
- Not establishedChair and Haworth rings
- Not establishedChain tool
- Yes, according to the manual: Vendor claim: steroids, sugars, pharmaceuticals and other scaffolds. Opens the cited page.Template libraryVendor claim: steroids, sugars, pharmaceuticals and other scaffolds.play.google.com
- Not establishedSave your own templates
- Not establishedGroup abbreviations
- Yes, according to the manual: Isotopes documented; developer screenshots show charge and element controls. Opens the cited page.Charges, isotopes and atom labelsIsotopes documented; developer screenshots show charge and element controls.play.google.com
- Yes, according to the manual: Vendor claim: lone-pair markers. Opens the cited page.Radicals and lone pairsVendor claim: lone-pair markers.play.google.com
- Not establishedKeyboard drawing
- Not establishedLasso select and transforms
- Not establishedTilt drawings in perspective
Reactions and mechanisms
- Yes, according to the manual: Vendor claim: forward and equilibrium arrows. Opens the cited page.Reaction arrowsVendor claim: forward and equilibrium arrows.play.google.com
- Yes, according to the manual: Vendor claim: curved electron-movement arrows. Opens the cited page.Curved mechanism arrowsVendor claim: curved electron-movement arrows.play.google.com
- Not establishedMachine-readable reactions
- Not establishedAtom mapping
- Not establishedOrbitals and symbols
Figures and layout
- Not established: Font controls unverified.Rich text captionsFont controls unverified.
- Not establishedShapes, brackets and curves
- Not establishedAlign and distribute
- Yes, according to the manual: Vendor claim: grouping labels and annotations. Opens the cited page.Group and ungroupVendor claim: grouping labels and annotations.play.google.com
- Yes, according to the manual: Vendor claim: tidies rings and spacing. Opens the cited page.2D structure cleanupVendor claim: tidies rings and spacing.play.google.com
- Not establishedJournal drawing styles
- Not establishedReusable custom styles
- Not establishedColor control
- Not establishedColor highlighting
- Not establishedPage layout and multipage
- Not establishedImported pictures
- Not establishedTLC plates and tables
Chemistry intelligence
- Yes, according to the manual: Vendor claim: flags common drawing errors. Opens the cited page.Structure checkingVendor claim: flags common drawing errors.play.google.com
- Not establishedR/S and E/Z labels
- Yes, according to the manual: Vendor claim: formula, molecular weight, monoisotopic mass. Opens the cited page.Formula and massVendor claim: formula, molecular weight, monoisotopic mass.play.google.com
- Not establishedProperty estimates
- Not establishedName to structure
- Not establishedStructure to name
- Not establishedNMR prediction
- Not establishedR-groups and query structures
- Not establishedPolymers and repeat units
- Not establishedPeptides and nucleic acids
- Not establishedImage to structure
- Not establishedOnline structure lookup
- Not established3D model view
- Not establishedCrystal structures
Files and exchange
- Not establishedCDXML import and export
- Not establishedCDX import and export
- Not establishedMOL and SDF
- Yes, according to the manual: Vendor claim: SMILES import and export. Opens the cited page.SMILESVendor claim: SMILES import and export.play.google.com
- Not establishedInChI
- Not establishedRXN files
- Not establishedSVG export
- Not establishedPDF export
- Not established: Print resolution unverified.High-resolution PNGPrint resolution unverified.
- Not establishedPaste to and from ChemDraw
- Not establishedEditable in Word or PowerPoint
- Not establishedWindows Office OLE
APIs and automation
- Not establishedPython API
- Not establishedJavaScript or TypeScript API
- Not establishedCommand-line tool
- Not establishedAI agent control
- Not establishedBuilt-in AI assistant
Embedding and extension
- Not establishedPlugins
- Not established: Android app; no editor embedding interface documented.Embed in your own appAndroid app; no editor embedding interface documented.play.google.com