Chemical substance

TinyMCE ::: tiny_molstructure
Maintained by Céline Perves, Louis Plyer
Draw a molecule or reaction using ChemDoodle Web editor, and insert it in a text editor. Allows to produce content related to chemistry.
Latest release:
184 sites
64 downloads
6 fans
Current versions available: 3
This TinyMCE plugin allowing to add a chemical structure or reaction as an image without the need of any licence in a text editor.
Contains a preview of the inserted image

Authors :
Louis Plyer louis.plyer@unistra.fr
Gilles Marcou g.marcou@unistra.fr
Céline Perves cperves@unistra.fr

Licence
GNU GPL v3 or later

Screenshots

Screenshot #0
Screenshot #1
Screenshot #2
Screenshot #3

Contributors

Céline Perves (Lead maintainer): Developper
Louis Plyer: Author, Developper
Gilles MARCOU: Author
Célien Jacquemard: Author
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Comments

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  • Plugins bot
    Fri, 22 Mar 2024, 12:50 AM
    Approval issue created: CONTRIB-9527
  • Terry Aulenbach
    Thu, 27 Feb 2025, 4:06 AM
    Does this work with Moodle 4.5?
  • Céline Perves
    Thu, 27 Feb 2025, 3:44 PM
    Hello, a new version is on the way
    I am waiting for validation of the concerned service to publish it in moodle.org
    You can find it on the VCS tag 1.1.0
  • Céline Perves
    Thu, 27 Feb 2025, 10:17 PM
    new version for Moodle 4.5 with new features 2D and 3D drawing + spectrum representation
  • Ammar Merhbi
    Wed, 29 Oct 2025, 6:46 AM
    When will 5.0 be available?
  • Ricardo Caiado
    Tue, 31 Mar 2026, 12:32 AM
    Hi,

    I just tested the plugin and saw that it's available for teachers to create question statements, but not for students to use in the answer field. Is this a limitation of the plugin, or is it possible to enable it for student use as well?

    Ricardo
  • Stephen Harlow
    Wed, 1 Apr 2026, 6:54 AM
    Ricardo,

    I was disappointed to discover the same thing. Although the tiny/molstructure capability exists and is granted to students, it is not evaluated in the quiz attempt context. It seems Moodle deliberately restricts the TinyMCE plugins that can load during quiz attempts, presumably because plugins (such as those loading external JS libraries like ChemDoodle) may interfere with autosave, attempt reloads, or secure quiz modes etc.

    This means the behaviour cannot be enabled through permissions alone. As a workaround, students can construct chemical structures in another editor where the plugin is available and paste the structure into their quiz response.

    Stephen
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