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ChemWindow (KnowItAll ChemWindow Edition)
Windows software for drawing chemical structures, preparing publication figures, and managing chemical databases.
Paid. 41 of 65 checklist features confirmed.
Main canvas
Paid, checked from the manual
Paid, checked from the manual
Default drawings
Paid, checked from the manual
Caffeine
Paid, checked from the manual
Paclitaxel
Paid, checked from the manual
Cholesterol in 3D
Facts
- Latest version
- 2026.1
- Runs on
- Windows
- License
- Proprietary commercial software licensed as KnowItAll ChemWindow Edition.
- Price
- Price by quotation (2026-11-05).
- Plans
- KnowItAll ChemWindow Edition: 2026-11-06: Quote required.
- Relies on
- OPSIN. Vendor documents OPSIN name conversion; canvas provenance remains unconfirmed.
- Chemistry from
- OPSIN (linked name-to-structure conversion)
- Main language
- Not published
- Other languages
- Not established
- Renderer
- Not established
- Third-party licenses
- Not established
- Requires Windows; Mac use requires Parallels 20 and Windows 11.
- Pricing requires a quotation; download requires a license verification code.
- Some KnowItAll capabilities require additional editions or database subscriptions.
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: Click bond midpoints to cycle single, double, and triple bonds. Opens the cited page.Single, double and triple bondsClick bond midpoints to cycle single, double, and triple bonds.help.knowitall.com
- Yes, according to the manual: Official hotkey diagram shows wedge, hashed wedge, and wavy bonds. Opens the cited page.Wedge, hash and wavy bondsOfficial hotkey diagram shows wedge, hashed wedge, and wavy bonds.sciencesolutions.wiley.com
- Yes, according to the manual: Dative, hydrogen, and quadruple bond tools. Opens the cited page.Dative, hydrogen and quadruple bondsDative, hydrogen, and quadruple bond tools.help.knowitall.com
- Not establishedChoose double-bond side
- Yes, according to the manual: Dedicated ring tools include aromatic rings. Opens the cited page.Ring toolsDedicated ring tools include aromatic rings.help.knowitall.com
- Yes, according to the manual: Dedicated cyclohexane chair tool. Opens the cited page.Chair and Haworth ringsDedicated cyclohexane chair tool.help.knowitall.com
- Yes, according to the manual: Drag acyclic chains; Alt adds alternating double bonds. Opens the cited page.Chain toolDrag acyclic chains; Alt adds alternating double bonds.help.knowitall.com
- Yes, according to the manual: Built-in predefined substituent fragments. Opens the cited page.Template libraryBuilt-in predefined substituent fragments.help.knowitall.com
- Yes, according to the manual: Drawings save as ChemWindow Structure Template & Style files. Opens the cited page.Save your own templatesDrawings save as ChemWindow Structure Template & Style files.sciencesolutions.wiley.com
- Yes, according to the manual: Ph, Boc, and other labels expand into structures. Opens the cited page.Group abbreviationsPh, Boc, and other labels expand into structures.help.knowitall.com
- Yes, according to the manual: Charges, element labels, and deuterium labels. Opens the cited page.Charges, isotopes and atom labelsCharges, element labels, and deuterium labels.help.knowitall.com
- Yes, according to the manual: Dedicated radical tools; electron-pair tools also available. Opens the cited page.Radicals and lone pairsDedicated radical tools; electron-pair tools also available.help.knowitall.com
- Yes, according to the manual: Hover over an atom and press its element hotkey. Opens the cited page.Keyboard drawingHover over an atom and press its element hotkey.help.knowitall.com
- Yes, according to the manual: Lasso selection with rotation, flips, scaling, and stretching. Opens the cited page.Lasso select and transformsLasso selection with rotation, flips, scaling, and stretching.help.knowitall.com
- Yes, according to the manual: Rotate selected canvas structures in three dimensions. Opens the cited page.Tilt drawings in perspectiveRotate selected canvas structures in three dimensions.help.knowitall.com
Reactions and mechanisms
- Yes, according to the manual: Forward, equilibrium, resonance, and retrosynthetic arrow tools. Opens the cited page.Reaction arrowsForward, equilibrium, resonance, and retrosynthetic arrow tools.help.knowitall.com
- Yes, according to the manual: Editable curved arrows with changeable heads via included ReportIt. Opens the cited page.Curved mechanism arrowsEditable curved arrows with changeable heads via included ReportIt.help.knowitall.com
- Yes, according to the manual: RXN and RInChI formats preserve chemical reactions. Opens the cited page.Machine-readable reactionsRXN and RInChI formats preserve chemical reactions.help.knowitall.com
- Not establishedAtom mapping
- Yes, according to the manual: Orbital shapes via included ReportIt. Opens the cited page.Orbitals and symbolsOrbital shapes via included ReportIt.help.knowitall.com
Figures and layout
- Yes, according to the manual: Fonts, superscripts, and subscripts; free captions through included ReportIt. Opens the cited page.Rich text captionsFonts, superscripts, and subscripts; free captions through included ReportIt.help.knowitall.com
- Yes, according to the manual: Editable shapes, brackets, braces, and curves via included ReportIt. Opens the cited page.Shapes, brackets and curvesEditable shapes, brackets, braces, and curves via included ReportIt.help.knowitall.com
- Yes, according to the manual: Align Objects and Space Evenly commands. Opens the cited page.Align and distributeAlign Objects and Space Evenly commands.help.knowitall.com
- Yes, according to the manual: Group and ungroup separate objects via included ReportIt. Opens the cited page.Group and ungroupGroup and ungroup separate objects via included ReportIt.help.knowitall.com
- Yes, according to the manual: Tidies structure geometry and bond lengths. Opens the cited page.2D structure cleanupTidies structure geometry and bond lengths.help.knowitall.com
- Not establishedJournal drawing styles
- Yes, according to the manual: Reusable style files and configurable default structure style. Opens the cited page.Reusable custom stylesReusable style files and configurable default structure style.help.knowitall.com
- Yes, according to the manual: Selected objects can use custom colors. Opens the cited page.Color controlSelected objects can use custom colors.help.knowitall.com
- Not establishedColor highlighting
- Yes, according to the manual: Page setup and multipage documents via included ReportIt. Opens the cited page.Page layout and multipagePage setup and multipage documents via included ReportIt.help.knowitall.com
- Yes, according to the manual: Paste raster pictures into included ReportIt. Opens the cited page.Imported picturesPaste raster pictures into included ReportIt.sciencesolutions.wiley.com
- Yes, according to the manual: Editable tables via included ReportIt. Opens the cited page.TLC plates and tablesEditable tables via included ReportIt.help.knowitall.com
Chemistry intelligence
- Yes, according to the manual: Flags invalid labels and incorrect valences. Opens the cited page.Structure checkingFlags invalid labels and incorrect valences.help.knowitall.com
- Yes, according to the manual: R/S and E/Z recognition; vendor claim. Opens the cited page.R/S and E/Z labelsR/S and E/Z recognition; vendor claim.sciencesolutions.wiley.com
- Yes, according to the manual: Formula, molecular mass, exact mass, and composition. Opens the cited page.Formula and massFormula, molecular mass, exact mass, and composition.help.knowitall.com
- Not establishedProperty estimates
- Yes, according to the manual: OPSIN Name2Structure adds structures from typed chemical names. Opens the cited page.Name to structureOPSIN Name2Structure adds structures from typed chemical names.help.knowitall.com
- No: IUPAC NameIt was discontinued in KnowItAll 2015. Opens the cited page.Structure to nameIUPAC NameIt was discontinued in KnowItAll 2015.sciencesolutions.wiley.com
- Yes, according to the manual: 13C batch prediction in MineIt; vendor claim. Opens the cited page.NMR prediction13C batch prediction in MineIt; vendor claim.sciencesolutions.wiley.com
- Yes, according to the manual: Numbered R-groups act as variable groups in structure searches. Opens the cited page.R-groups and query structuresNumbered R-groups act as variable groups in structure searches.help.knowitall.com
- Not establishedPolymers and repeat units
- Not establishedPeptides and nucleic acids
- Not establishedImage to structure
- Yes, according to the manual: PubChem structures via MineIt; vendor claim. Opens the cited page.Online structure lookupPubChem structures via MineIt; vendor claim.sciencesolutions.wiley.com
- Yes, according to the manual: Included 3DViewIt supports rotation and 2D-to-3D conversion. Opens the cited page.3D model viewIncluded 3DViewIt supports rotation and 2D-to-3D conversion.help.knowitall.com
- Not establishedCrystal structures
Files and exchange
- Not establishedCDXML import and export
- Not establishedCDX import and export
- Yes, according to the manual: MOL read/write; SDF import/export via MineIt databases. Opens the cited page.MOL and SDFMOL read/write; SDF import/export via MineIt databases.sciencesolutions.wiley.com
- Not establishedSMILES
- Yes, according to the manual: Supports InChI and InChIKey structure files. Opens the cited page.InChISupports InChI and InChIKey structure files.help.knowitall.com
- Yes, according to the manual: Supports MDL RXN and RXN V3000 files. Opens the cited page.RXN filesSupports MDL RXN and RXN V3000 files.help.knowitall.com
- Not establishedSVG export
- Not establishedPDF export
- Not establishedHigh-resolution PNG
- Not establishedPaste to and from ChemDraw
- Yes, according to the manual: Pasted Office objects reopen in ChemWindow for editing. Opens the cited page.Editable in Word or PowerPointPasted Office objects reopen in ChemWindow for editing.sciencesolutions.wiley.com
- Yes, according to the manual: Windows Office OLE objects reopen in ChemWindow with double-click editing. Opens the cited page.Windows Office OLEWindows Office OLE objects reopen in ChemWindow with double-click editing.sciencesolutions.wiley.com
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: Office OLE objects only, listed under Editable in Office. No developer route found.Embed in your own appOffice OLE objects only, listed under Editable in Office. No developer route found.sciencesolutions.wiley.com