chemfig

• 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, tested by running it: Single, double and triple bonds rendered from drawing code. Opens the screenshot.Single, double and triple bondsSingle, double and triple bonds rendered from drawing code.tug.ctan.org
• Yes, tested by running it: Wedge, hash and TikZ-decorated wavy bonds rendered. Opens the screenshot.Wedge, hash and wavy bondsWedge, hash and TikZ-decorated wavy bonds rendered.tug.ctan.org
• Not establishedDative, hydrogen and quadruple bonds
• Yes, tested by running it: Explicit upper, lower and centered double-bond strokes rendered. Opens the cited page.Choose double-bond sideExplicit upper, lower and centered double-bond strokes rendered.tug.ctan.org
• Yes, tested by running it: Three-, five-, six-membered and aromatic circle rings rendered. Opens the screenshot.Ring toolsThree-, five-, six-membered and aromatic circle rings rendered.tug.ctan.org
• Partly: Chair/Haworth examples require explicit bond angles. Opens the cited page.Chair and Haworth ringsChair/Haworth examples require explicit bond angles.tug.ctan.org
• Not establishedChain tool
• No: Undefined built-in Ph alias produced an empty page. Opens the cited page.Template libraryUndefined built-in Ph alias produced an empty page.
• Yes, tested by running it: Saved ester submolecule code expanded twice in different structures. Opens the cited page.Save your own templatesSaved ester submolecule code expanded twice in different structures.tug.ctan.org
• Partly: Custom submolecule expansion worked; built-in Ph was absent. Opens the cited page.Group abbreviationsCustom submolecule expansion worked; built-in Ph was absent.tug.ctan.org
• Yes, tested by running it: Carbon isotope and positive nitrogen charge rendered. Opens the screenshot.Charges, isotopes and atom labelsCarbon isotope and positive nitrogen charge rendered.tug.ctan.org
• Yes, tested by running it: Oxygen radical dot and lone pair rendered. Opens the screenshot.Radicals and lone pairsOxygen radical dot and lone pair rendered.tug.ctan.org
• Not establishedKeyboard drawing
• Partly: Rotation, flipping and scaling are specified through TeX code. Opens the cited page.Lasso select and transformsRotation, flipping and scaling are specified through TeX code.tug.ctan.org
• Partly: Perspective constructed manually with bond angles and lengths. Opens the cited page.Tilt drawings in perspectivePerspective constructed manually with bond angles and lengths.tug.ctan.org

Reactions and mechanisms

• Yes, tested by running it: Forward and equilibrium reaction arrows rendered. Opens the screenshot.Reaction arrowsForward and equilibrium reaction arrows rendered.tug.ctan.org
• Yes, tested by running it: Curved full-head arrow rendered through chemmove and TikZ. Opens the screenshot.Curved mechanism arrowsCurved full-head arrow rendered through chemmove and TikZ.tug.ctan.org
• Not establishedMachine-readable reactions
• Not establishedAtom mapping
• Not establishedOrbitals and symbols

Figures and layout

• Yes, according to the manual: TeX captions and positioned TikZ text. Opens the cited page.Rich text captionsTeX captions and positioned TikZ text.tug.ctan.org
• Yes, according to the manual: TikZ shapes and curves; expandable chemfig brackets. Opens the cited page.Shapes, brackets and curvesTikZ shapes and curves; expandable chemfig brackets.tug.ctan.org
• Partly: Code-based alignment and spacing, without selecting canvas objects. Opens the cited page.Align and distributeCode-based alignment and spacing, without selecting canvas objects.tug.ctan.org
• Yes, according to the manual: Subschemes are positioned as single entities. Opens the cited page.Group and ungroupSubschemes are positioned as single entities.tug.ctan.org
• Not established2D structure cleanup
• Not establishedJournal drawing styles
• Yes, according to the manual: Reusable TeX settings for bonds and atom fonts. Opens the cited page.Reusable custom stylesReusable TeX settings for bonds and atom fonts.tug.ctan.org
• Yes, according to the manual. Opens the cited page.Color controltug.ctan.org
• Yes, according to the manual: TikZ overlays add translucent backgrounds behind chosen atoms and bonds. Opens the cited page.Color highlightingTikZ overlays add translucent backgrounds behind chosen atoms and bonds.tex.stackexchange.com
• Not establishedPage layout and multipage
• Not establishedImported pictures
• Not establishedTLC plates and tables

Chemistry intelligence

• No: Six-bond carbon rendered without a chemical validation warning. Opens the cited page.Structure checkingSix-bond carbon rendered without a chemical validation warning.
• Not establishedR/S and E/Z labels
• Not establishedFormula and mass
• Not establishedProperty estimates
• No: Direct caffeine input printed its name as a label. Opens the cited page.Name to structureDirect caffeine input printed its name as a label.
• Not establishedStructure to name
• Not establishedNMR prediction
• Partly: Graphical R-group label only; query semantics were not tested. Opens the screenshot.R-groups and query structuresGraphical R-group label only; query semantics were not tested.tug.ctan.org
• Partly: Node-anchored delimiters and indices; graphical repeat representation only. Opens the cited page.Polymers and repeat unitsNode-anchored delimiters and indices; graphical repeat representation only.tug.ctan.org
• Not establishedPeptides and nucleic acids
• Not establishedImage to structure
• Not establishedOnline structure lookup
• Not established3D model view
• Not establishedCrystal structures

Files and exchange

• No: Direct CDXML through TeX input failed; no native importer. Opens the cited page.CDXML import and exportDirect CDXML through TeX input failed; no native importer.
• Not establishedCDX import and export
• No: Direct MOL input failed; conversion required external mol2chemfig. Opens the cited page.MOL and SDFDirect MOL input failed; conversion required external mol2chemfig.
• No: Direct SMILES produced overlapping labels; external conversion required. Opens the cited page.SMILESDirect SMILES produced overlapping labels; external conversion required.
• Not establishedInChI
• Not establishedRXN files
• No: Native output-format request rejected SVG. Opens the cited page.SVG exportNative output-format request rejected SVG.
• Yes, tested by running it: Vector PDFs compiled with Tectonic using default drawing settings. Opens the screenshot.PDF exportVector PDFs compiled with Tectonic using default drawing settings.tug.ctan.org
• No: Native request rejected PNG; pdftoppm rasterization was external. Opens the cited page.High-resolution PNGNative request rejected PNG; pdftoppm rasterization was external.
• 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
• Yes, tested by running it: Rendered through a TeX compiler without an editor GUI. Opens the cited page.Command-line toolRendered through a TeX compiler without an editor GUI.tug.ctan.org
• Not establishedAI agent control
• Not establishedBuilt-in AI assistant

Embedding and extension

• Yes, according to the manual: Custom arrow definitions and atom-rendering macros. Opens the cited page.PluginsCustom arrow definitions and atom-rendering macros.tug.ctan.org
• Not established: TeX typesetting macros; no embeddable editor documented.Embed in your own appTeX typesetting macros; no embeddable editor documented.ctan.org