Pains Filters

KCH Workflows
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This is a companion discussion topic for the original entry at https://kni.me/w/L_hqdmCTOh3mcF9W
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Dear Community,
How are classified the 3 PAINS families (A-B-C) in the RDKit Molecule Catalog Filter?
Thank you in advance!

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These seem to be standard filters, but I’m not a chemist so I can’t elaborate on details. Maybe @manuelschwarze or @greglandrum could shed some light?

You could also ask in the dedicated subforum: