Markush Editor History of Changes

    Only major changes listed here, minor bugfixes, dependency updates, and smaller improvements are not included in the changelog.

    Markush Editor 22.1

    New Features and Improvements

    • Composer improvement resulting in a more accurate handling of ring systems in the generated Markush, including heteroaromatic rings as well

    • Markush Editor now supports quick input of homology groups for entering fragment definitions when editing R-groups (by typing the abrreviation for the group in the opened editor window)

    • Both Chemaxon names and shortcuts defined in the Derwent Markush Reference Manual are recognized for these homology groups

    Markush Editor 21.21

    New Features and Improvements

    • New quick text input function for entering fragment definitions in the Markush tree (Reachable through the right click context menu)

    Markush Editor 21.20

    New Features and Improvements

    • New Create narrowed claim based on selection function available in validation view

    • Composer improvement for better handling of ring systems in R-groups in case of an automatically generated Markush

    • New updated look and feel of Markush Editor

    Markush Editor 21.19

    New Features and Improvements

    • Migrated Markush Editor to Java 11

    • Auto Update doesn't work for this version ! A clean manual installation is required for 21.19. For the following updates Auto Update in Markush Editor will be available again.

    Markush Editor 21.17

    New Features and Improvements

    • Added customizable example numbers to show user defined numbers pulled from the input exemplified data file

    • Added advanced customizable data export features allowing to show additional data (compound ID, assay data, preparation information etc.) present in the example structure file in the exported draft document either as part of the document body or as a comment

    Markush Editor 21.16

    New Features and Improvements

    • The automatically generated Markush now shows the Kekulé structures for aromatic rings both in the Editor application and in the exported draft document

    Markush Editor 21.15

    New Features and Improvements

    • Fixed exported claim draft language selection when Japanese is the default system language

    Markush Editor 21.12

    New Features and Improvements

    • Added automatic generalization of R-groups during the generation of the Markush structure (selectable option on the Compose Markush Structure Window)

    Markush Editor 21.10

    New Features and Improvements

    • Added option to select preference between IUPAC name/formula in the exported document for functional group names

    Markush Editor 21.9

    New Features and Improvements

    • Major Markush Editor layout changes

    • Improved freely resizable and reorganizable Validation view (moved from beow Markush tree to the right of it)

    • Added Example lists window for importing and managing multiple example structure sets for a single Markush

    • Loaded Example lists are now saved together with the Markush structures

    • Added Japanese Language support for document preview and export

    • Example structures can now be aligned to the scaffold from the context menu in Validation view

    • Nesting view and Preview can now be reached from Markush inspection views on the toolbar

    Markush Editor 21.4

    New Features and Improvements

    • Remove confusing attachment order indicators from R-groups in exported documents

    • Installer now works on MacOS Catalina

    Markush Editor 21.2

    New Features and Improvements

    • Claim checker for verrifying the consistency of claim hierarchy

    • Improved handling of heteroaromatic rings in composer

    • New replace fragments with more specific/more general feature

    Markush Editor 20.19

    New Features and Improvements

    • Basic support of claim hierarchy

    • Visual editor for custom fragment dictionary

    Markush Editor 20.17

    New Features and Improvements

    • Significant improvements in automatic scaffold detection (side changes handling)

    • Configurable fragment dictionary to overwrite the default fragment names in claim text generation

    Markush Editor 20.13

    New Features and Improvements

    • Export the exemplified structures list with structure images and IUPAC names to the generated document.

    Markush Editor 20.9

    New Features and Improvements

    • Markush to text export to DOCX format

    • Significant improvements in the quality of the generated claim draft


    • Unnecessary hit coloring removed from exported structure images

    Markush Editor 20.5

    New Features and Improvements

    • Major platform update (NetBeans platform version 9.0)

    Markush Editor 19.29


    • Make Markush required additional license

    • In some cases, aromatic and non-aromatic fragments are mixed in hit coloring

    Markush Editor 19.1

    New Features and Improvements

    • Markush structure to text export in HTML format

    Markush Editor 17.5

    New Features and Improvements

    • Version number system change

    Markush Editor 17.1.9

    New Features and Improvements

    • Configurable Markush validation options.

    • Bond length checker removed from the default checker configuration.

    • Major platform update (Netbeans platform version 8.0)

    Markush Editor 15.10.12

    New Features and Improvements

    • Rename R-groups from the tree.

    Markush Editor 15.9.28

    New Features and Improvements

    • Save validation result during structure list export.

    Markush Editor 15.9.21

    New Features and Improvements

    • The number of matching structures in validation view.

    • Ignore stereo during Markush validation

    Markush Editor 15.9.7

    New Features and Improvements

    • New composer dialog.

    • Composer input file with non-separated molecules allowed.

    Markush Editor 15.8.24

    New Features and Improvements

    • Stereo ignored during Markush validation and Non-Hit coloring.

    Markush Editor 15.6.22

    New Features and Improvements

    • logP filter in the biased enumeration.

    • Save and reset enumeration preferences.

    • New more-readable estimated library size format.


    • R-group aliases are not shown in the enumeration spreadsheet view.

    • Max. structure count applied before filtering resulting in fewer structures what is expected.

    Markush Editor 15.6.15

    New Features and Improvements

    • Markush validation against structure list, with built-in hit and non-hit visualization.

    • By using Markush Composer wizard validation structures automatically populated with the Composer's input structure list.

    • Hydrogen bond donors and acceptors filter in the biased enumeration.


    • Incorrect fragment size in a case of link node and repeating unit fixed.

    • A strange look of enumeration panel in Mac and Linux fixed.

    Markush Editor 15.6.1

    New Features and Improvements

    • Biased enumeration (directed enumeration based on user-defined parameters).

    • Molecular weight filter in the biased enumeration.

    • Unified Mac and Linux installer.

    Markush Editor 15.5.18

    New Features and Improvements

    • R-group inline action in Markush tree nodes context menu

    Markush Editor 15.5.4

    New Features and Improvements

    • Better display for Composer results.

    • Improved MCS calculation for R-group nesting.

    Markush Editor 15.4.20

    New Features and Improvements

    • Composer capable of generating Markush structures with position variation bonds.

    • Support of R-groups for user defined scaffold.

    Markush Editor 15.4.13

    New Features and Improvements

    • Info dialog if composer creates more than one Markush structures.

    Markush Editor 15.4.6

    New Features and Improvements

    • Atom list and bond list support in Composer for user defined scaffold.

    Markush Editor 15.3.30

    New Features and Improvements

    • Improved scaffold recognition in Composer..

    Markush Editor 15.3.23

    New Features and Improvements

    • Set scaffold function in Markush Composer wizard.

    Markush Editor 15.3.16

    New Features and Improvements

    • Display R-group alias instead of R-group number if it exists.

    Markush Editor 15.2.23

    New Features and Improvements

    • Smaller, fragment selection handling improvements.

    Markush Editor 15.2.16

    New Features and Improvements

    • New selection, hit error and warning visualization in Markush Tree and Fragment view.

    • Improved undo and redo mechanism, capable of handling structure fixer actions.

    • Mac and Linux installer..

    Markush Editor 15.2.9

    New Features and Improvements

    • A new selection hit error and warning visualization in Markush Tree and Fragment view.

    • Improved undo and redo mechanism, capable of handling structure fixer actions.

    Markush Editor 15.2.2

    New Features and Improvements

    • Support common hotkeys.

    • Add R-group attachments to fragments automatically in trivial cases.

    • Make structure fix actions undoable.


    • Enumeration exception in a case of undefined R-groups.

    Markush Editor 15.1.26

    New Features and Improvements

    • Automatic version update.

    • Reorganized preview and nesting view components.

    Markush Editor 15.1.12

    New Features and Improvements

    • Spreadsheet view for enumeration results with R-group fragments.

    • Duplicates and infeasible rings filter in the enumeration.

    • Enumeration results in export.

    Markush Editor 14.12.8

    New Features and Improvements

    • If a Markush structure inserted into the scaffold editor it automatically split to scaffold and fragments.

    Markush Editor 14.11.24


    • Display only explicit R/S labels.

    • Markush export error in some cases.

    • Wrong tab display names for files containing multiple structures.

    Markush Editor 14.11.17


    • Checker panel "invalid checker" warning fixed.

    Markush Editor 14.11.10


    • In the Markush tree view, scrolling to the selected structure checker result did not work properly.

    • Fixing only a selected structure checker result did not work properly in some cases.

    • Enumeration count of hHomologies modified to one regardless to the type of the homology.

    Markush Editor 14.10.27

    New Features and Improvements

    • R-group bridging support.

    Markush Editor 14.10.6

    New Features and Improvements

    • Dynamic enumeration count calculation.

    Markush Editor 14.9.29

    New Features and Improvements

    • Full view removed.

    • New action icons added.

    Markush Editor 14.9.22

    New Features and Improvements

    • Composer standardizer action for removing awkward/superfluous R-groups.

    • Composer scaffold calculation optimization.


    • Minor enumeration related bugfixes.

    Markush Editor 14.9.8

    New Features and Improvements

    • Support for open multiple files at once.

    • Improved re-ordering of fragments and R-groups.

    Markush Editor 14.8.25

    New Features and Improvements

    • List atom supports in the composer.

    • Migrated to Java 8.


    • Composer-related minor bugfixes.

    Markush Editor 14.8.18

    New Features and Improvements

    • Unnecessary fragment and scaffold cleaning removed.

    Markush Editor 14.8.4

    New Features and Improvements

    • MCS optimization for better scaffold recognition.

    Markush Editor 14.7.21


    • New empty file saving exception fixed.

    Markush Editor 14.7.14

    New Features and Improvements

    • "Don't show this message again" option for license warning in viewer mode.


    • Fewer Composer warnings.

    • Memory leak related to closed structures fixed.

    Markush Editor 14.7.7

    New Features and Improvements

    • Markush Composer Wizard for generating Markush structures automatically from the list of compounds.

    • Improved fragment visualization.

    • Fragments' borders removed.

    • Random enumeration when only scaffold selected.

    • The opening sketch window by double clicking.

    • Improved product info dialog.


    • New files naming error fixed by confusing temporary file ID removed.

    • Timing error related to fast tabs opening fixed.

    Markush Editor 6.3.0

    New Features and Improvements

    • First public release.