Chemical Structures and Reactions Editor

Atto ::: atto_structure
Maintained by Carl LeBlond
Easily draw and insert chemical structures using MarvinJS. Requires MarvinJS from Chemaxon.
Latest release:
118 sites
11 fans
Current versions available: 2
This plugin provides an Atto toolbar button that allows users to draw and insert images of chemical structures and reactions using MarvinJS.  The width and height of the image can be set before inserting the image.


This plugin is part of set EasyOChem.


Screenshot #0
Screenshot #1


Carl LeBlond (Lead maintainer)
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  • Sun, Mar 15, 2015, 8:43 PM
    Hi Carl
    The problem is still the same as Mikki noticed. Any new updates since today?
  • Sun, Mar 15, 2015, 10:52 PM
    The plugin works perfect! thank you.
    For the new downloaders, just make the structure then click insert. After than, click on insert image of the editor tallbar.
    It works
  • Sun, Dec 20, 2015, 1:40 AM
    Will Chemical Structures and Reactions Editor be updated for moodle 3.0?
  • Tue, Jan 19, 2016, 12:37 AM
    Moodle 3 support. Pls...
  • Tue, Jan 19, 2016, 1:26 AM
    I've been using it on Moodle 3.0 without any problems. Are you guys (Andreas/Murat) having an issue with it not working?
  • Thu, Jan 28, 2016, 4:47 PM
    Thanks... (Carl LeBlond)
  • Thu, Sep 15, 2016, 4:49 AM

    I have installed atto_structure plugin in my local instance( This instance with only HTTP). It is working fine.
    Here the same plugin installed in HTTPS site. But it wont work it is showing empty structure box.
    In the firebug i changed the to then only its working.
    Please help me how to over come this issue. And the moodle version 3.0
  • Fri, Sep 16, 2016, 9:20 PM
    Sarendar - On line 57 of the lib.php try changing http to https. When I get a chance I will update the code so it works on both http and https servers. Thanks for trying my plugin.
  • Fri, Mar 17, 2017, 5:20 AM

    I would be very glad to have this plugin for Moodle 3.x.
  • Ricardo Caiado
    Sun, Sep 24, 2017, 6:00 PM

    Any plans to upgrade to Moodle 3.x?

  • Sat, Jun 30, 2018, 1:51 AM
    Hi there,

    Any plans to upgrade to Moodle 3.x?
  • Ricardo Caiado
    Fri, Aug 24, 2018, 1:08 AM
    Is this plugin dead?
  • Tue, Sep 18, 2018, 4:13 PM
    Good day, our Chemistry department is desperate for this plugin, or something similar. We're on Moodle 3.5 and cannot run the current versions. Are there any plans for updates, or can anyone make suggestions for alternative plugins/software.
  • Fri, Jul 10, 2020, 9:12 PM
    Hi, Is there any plans to update this plugin to version 3.8 / 3.9 / 4.0?
  • Thu, Apr 8, 2021, 6:26 PM
    Hi for all of you trying to get this plugin to work on a current version of moodle and marvinjs:
    1. Download the zip and extract
    2. to resolve the mixed content error (https->http) replace in structure\lib.php line 57 "http://" with "https://"
    3. the name of the marvin scripts are hardcoded, so in order to make the newest version (1.0.0) work replace in the following documents promise-0.1.1.min.js with promise-1.0.0.min.js
    structure\yui\build\moodle-atto_structure-button\moodle-atto_structure-button-debug.js - line 218
    structure\yui\build\moodle-atto_structure-button\moodle-atto_structure-button-min.js - line 1
    structure\yui\build\moodle-atto_structure-button\moodle-atto_structure-button.js - line 215
    structure\yui\src\button\js\button.js - line 216
    4. re-zip the files and install
    5. enjoy!
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