PAINS Usage pfilter.pl input_structures.sdf Work in progress- haven't fully tested. Parallel processing not set up yet. Sieve definitions derived from the PAINS # Created by www.macinchem.org based on http://blog.rguha.net/?p=850 New Substructure Filters for Removal of Pan Assay Interference Compounds (PAINS) from Screening Libraries and for Their Exclusion in Bioassays FILTER FAMILY A (Freq_Hit_5_morethan150.hits) DOI: 10.1021/jm901137j