Currently, I am mostly working on chemistry in Wikidata but recently also validated CAS registry numbers in Wikipedia. Previously, I added many CompTox Dashboard identifiers to Wikidata. Now, Wikipedia ChemBoxes are slowly picking up more data from Wikidata, but are hesitant for a number of reasons. One is, I understood, that Wikipedia is meant to be self-consistent. That is, it should have all the information itself. Exceptions include images from WikiMedia Commons. Another one is the Wikipedia has a large chemistry community that is doing great curation work.

The Wikipedia on the CompTox Chemicals Dashboard: Connecting Resources to Enrich Public Chemical Data paper (doi:10.1021/acs.jcim.2c00886) is about curation of Wikipedia about (toxic) compounds.

There are multiple initiatives to support the migration from Twitter to Mastodon (see also this blog post).

In August I reported about 2D depiction of (CX)SMILES in Wikidata via linkouts (going back to 2017). Based on a script by Magnus Manske, I wrote a Wikidata gadget that uses the same CDK Depict (VHP4Safety mirror) to depict the 2D structure in Wikidata itself:

Note the depiction of the undefined (CIP) stereochemistry on two atoms. Thanks to Adriano and John for working that out.

More about CXSMILES in Wikidata in this Dagstuhl meeting results write up.
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This blog deals with chemblaics in the broader sense. Chemblaics (pronounced chem-bla-ics) is the science that uses computers to solve problems in chemistry, biochemistry and related fields. The big difference between chemblaics and areas such as chem(o)?informatics, chemometrics, computational chemistry, etc, is that chemblaics only uses open source software, open data, and open standards, making experimental results reproducible and validatable. And this is a big difference!
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