Taking part at the Global Women’s Breakfast 🎉 Many Voices, One Science. Our local theme is to hold space for new opportunities 🎈
#iupac
The #dalton (symbol: Da), or #unifiedAtomicMassUnit (symbol: u), is a unit of mass defined as 1/12 of the mass of an #unbound neutral atom of #carbon12 in its nuclear and electronic #groundState and #atRest. It is a #nonSIUnitAcceptedForUseWithSI. The word "unified" emphasizes that the definition was accepted by both #IUPAP and #IUPAC. The #atomicMassConstant, denoted mu, is an atomic-scale reference mass, defined identically, but it is not a unit of mass.
Wir haben eine neue international anerkannte Maßeinheit: 1 Merz. 1 Merz ist definiert als kleinster Abstand zweier benachbarter Fettnäpfchen.
#iupac #merz #peinlich #kanzler #merztrittendlichzurück #brasilien #si #blamage #friedrich #schande
Maybe chemical adulthood begins when you realize nomenclature is really important. Anyway, IUPAC is seeking feedback on draft refinements of how polymerization reactions are named. The draft is here
https://iupac.org/wp-content/uploads/2025/08/PAC-REC-2025-0490.R1_PR20250813.pdf
And feedback can be submitted here
https://www.cognitoforms.com/IUPAC1/IUPACProvisionalRecommendationsFeedback
#chemistry #nomenclature #IUPAC #polymer
new blog: "One Million IUPAC names #4: a lot is happening" https://chem-bla-ics.linkedchemistry.info/2025/08/09/one-million-iupac-names-4.html
"A lot is happening. If you have been following this project more closesly, you may have already seen some interesting updates, but I will post it here too."
replies to this post become blog comments.
Fwd: "Unleashing 4 million IUPAC names into the wild" https://chembl.blogspot.com/2025/08/unleashing-4-million-iupac-names-into.html
"In support of Egon Willighagen's 'One Million IUPAC Names' project, we have just released more than 4 million IUPAC names text-mined from patents. Here are the details as listed on Zenodo:"
Iupac launches guiding principles that it hopes will enable responsible chemistry #Science #Chemistry #EnvironmentalChemistry #ResponsibleChemistry #IUPAC #Sustainability
https://purescience.news/article?id=938339
Congratulations to Stefan Grimme on receiving the Chemistry Europe Award! 🏅
He was honored at the Opening Ceremony of the IUPAC Conference in Kuala Lumpur for his groundbreaking contributions to theoretical and computational chemistry. The award was presented by Jan-Willem Toering (pictured left), Chemistry Europe Council Member and CEO of the KNCV.
https://www.chemistryviews.org/stefan-grimme-awarded-the-2025-chemistry-europe-award/
#chemistry #chemistryviews #chemviews #iupac #chemistryeurope #iupac2025 #kncv
new: 'One Million IUPAC names #3: the 200 thousand milestone and 1 million IUPAC names" https://doi.org/10.59350/6f7he-kxt56 https://chem-bla-ics.linkedchemistry.info/2025/06/09/one-million-iupac-names.html
"I could not find the time earlier to report (reason), but three weeks ago we passed the fourth milestone release of the CCZero IUPAC names found in literature collection. This release contains 200026 IUPAC names, 168702 unique names, reflecting 116207 unique InChIKeys."
replies to this post become blog comments.
more literature on IUPAC name generation on this Scholia page: https://scholia.toolforge.org/topic/Q110408287
📷 Photo courtesy of Brian Li, Editorial Board, Chemistry International, Dr. Andrew Shore, Royal Society of Chemistry and Agnes Jasinska, The University of Edinburgh
#PSDI #IUPAC #Units #PhysicalSciences #Chemistry #Materials #ResearchData #OpenData
So...
Is it real, that the International Union for Pure and Applied Chemistry is asking $199 for a book that contains the correct terminology for analytical chemistry???
WTF?!
https://books.rsc.org/books/edited-volume/2059/Compendium-of-Terminology-in-Analytical-Chemistry
hi #chemsky and #Fediverse, one has to have some goals, right? We think so too: we are going to collect 10M parsable and unique #IUPAC names as a unique CCZero dataset https://github.com/BlueObelisk/iupac-names/issues
big new feature got merged into the main development branch today, the support for the reaction InChI, RInChI. The pull request is here: https://github.com/cdk/cdk/issues/1063
interesting progress: "STOUT V2.0: SMILES to IUPAC name conversion using transformer models" https://doi.org/10.1186/s13321-024-00941-x
"The model was trained on a dataset of nearly 1 billion SMILES and corresponding IUPAC names, generated using OpenEye's Lexichem software. This new version achieves very high accuracy on test and benchmark datasets, demonstrating improved capability in producing longer IUPAC names with fewer errors overall."
When you buy used books, sometimes you learn about the copy’s history by markings on the inside. Here is one I received yesterday.
Multi-language chemistry dictionary to be created to avoid confusion
https://www.chemistryworld.com/news/chemistry-body-to-create-multi-language-chemistry-dictionary-to-avoid-confusion/4020071.article #Iupac #chemistry #dictionary
📣 Version 1.07 of the #InChI chemical identifier standard was approved by #IUPAC and the #InChI_Trust! It includes: rebuilt development and testing pipeline, better supporting maintenance and extension of the standard. We are glad to support this work!
Version 1.07 of the InChI chemical identifier standard was approved by #IUPAC and the #InChI_Trust and includes: rebuilt development and testing pipeline, better supporting maintenance and extension of the standard.
The @BeilsteinInstitut gladly supports this work!
Fit For Future: InChI Standard Moves to GitHub
Enhances transparency, collaboration, and reliability, supports future expansions, and promotes broader adoption of the International Chemical Identifier for linking chemical information across web sources
https://www.chemistryviews.org/fit-for-future-inchi-standard-moves-to-github/
#chemistry #chemistryviews #chemviews #inchi #IUPAC #Research
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