InChI: open-source chemical structure representation algorithm

InChI and InChIKeys for chemical structures

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  The InChI Trust is a nonprofit charity which works to develop and promote the use of the IUPAC InChI open-source chemical structure representation algorithm. The InChI with its associated InChIKey was developed as a non-proprietary international standard to represent chemical structures and has just celebrated its tenth anniversary. The Trust aims to develop and improve on the current InChI standard, further enabling the interlinking of chemistry and chemical structures on the web.  Watch our set of videos to find out more about the InChI and why it’s so cool.

What on Earth is InChI?

This video introduces the InChI standard to represent chemical structures.

The Googlable InChIKey

An InChIKey enables chemical structures to be uniquely identified on the web.

The Birth of the InChI

This video describes the background to the development of the InChI standard.

InChI and the Islands

The InChI standard – the International Chemical Identifier – enables the linking of information.

We’re running two Q&A sessions on 8/9 June 2021 about the 1.06 InChI release, with an expert panel to answer your questions.

Times to suit (most) east/west locations!

The next 3 dates of our Chemotion Stammtisch will be focused on Basics and Application of InChI! we are happy to have an expert as speaker, Dr. Gerd Blanke from StructurePendium: 28th may, 25th june and 30th july at 1 pm CET! @Nfdi4Chem @InChI_Trust

We're running two Q&A sessions on 8/9 June about the 1.06 InChI release, with an expert panel to answer your questions. Choose your session, timed to suit all locations! @IUPAC @goodman_j @EvanBolton @SteffenPauly

Still open - we need a Technical Director and a Marketing & Outreach Director to build on the success of InChI. Interested? For additional info:

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