CTAN update: chemfig
Date: September 2, 2026 5:17:50 PM CEST
Christian Tellechea submitted an update to the
chemfig
package.
Version: 1.81 2026-09-01
License: lppl1.3c
Summary description: Draw molecules with easy syntax
Announcement text:
Bugfix: when \? is let-equal to \relax, macro \CF_setcatcodes ended too soon
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/chemfig The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/generic/chemfig/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
CTAN is run entirely by volunteers and supported by TeX user groups. Please join a user group or donate to one, see https://ctan.org/lugs
Bugfix: when \? is let-equal to \relax, macro \CF_setcatcodes ended too soon
The package’s Catalogue entry can be viewed at https://ctan.org/pkg/chemfig The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/generic/chemfig/
Thanks for the upload. For the CTAN Team Petra Rübe-Pugliese
CTAN is run entirely by volunteers and supported by TeX user groups. Please join a user group or donate to one, see https://ctan.org/lugs
Chemfig – Draw molecules with easy syntax
The package provides the command \chemfig{<code>}, which draws molecules using the TikZ package. The <code> argument provides instructions for the drawing operation.
While the diagrams produced are essentially 2-dimensional, the package supports many of the conventional notations for illustrating the 3-dimensional layout of a molecule.
The package uses TikZ for its actual drawing operations.
| Package | Chemfig |
| Version | 1.81 2026-09-01 |
| Copyright | 2010–2026 Christian Tellechea |
| Maintainer | Christian Tellechea |