This post consist of a simple spreadsheet that takes that splits an InChI in its layers to facilitate its conceptualisation and its teaching. It considers the six layers currently detailed in the InChI TechnicalFAQ, https://www.inchi-trust.org/wp/technical-faq-2/#4.3.
The spreadsheet also facilitates looking up an InChI by entering the molecule name or its SMILES representation.
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