CTAN update: chemfig
Date: October 28, 2025 6:25:44 AM CET
Christian Tellechea submitted an update to the
chemfig
package.
Version: 1.7
License: lppl1.3c
Summary description: Draw molecules with easy syntax
Announcement text:
chemfig 1.7
1. To draw a horizontal reaction a new environment is provided: \hreac...\endhreac 2. The strut of the previous atom is no longer added to the argument of \printatom The key 'use atom strut', when set to true, reverts to the previous behavior 3. When 'use atom strut' is 'false', each atom is typeset in a TeX box only once, whereas previously it was sometimes 5 times or more
This package is located at https://mirrors.ctan.org/macros/generic/chemfig More information is at https://ctan.org/pkg/chemfig
Thanks for the upload. For the CTAN Team Manfred Lotz 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 1.7
1. To draw a horizontal reaction a new environment is provided: \hreac...\endhreac 2. The strut of the previous atom is no longer added to the argument of \printatom The key 'use atom strut', when set to true, reverts to the previous behavior 3. When 'use atom strut' is 'false', each atom is typeset in a TeX box only once, whereas previously it was sometimes 5 times or more
This package is located at https://mirrors.ctan.org/macros/generic/chemfig More information is at https://ctan.org/pkg/chemfig
Thanks for the upload. For the CTAN Team Manfred Lotz 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 | 1.7 |
| Copyright | 2010–2025 Christian Tellechea |
| Maintainer | Christian Tellechea |