ELECTRONIC SUPPLEMENTARY INFORMATION OF Aquatic Ecotoxicity of Personal Care Products: QSAR models and ranking for prioritization and safer alternatives’ design Paola Gramatica*, Stefano Cassani and Alessandro Sangion QSAR Research Unit in Environmental Chemistry and Ecotoxicology, Department of Theoretical and Applied Sciences, University of Insubria, Varese, Italy E-mail: paola.gramatica@uninsubria.it; http://www.qsar.it ; Tel: +39-0332-421573 Model graphs and equations for Pseudokirchneriella subcapitata toxicity - Random splitting Figure ES1: Graph of experimental vs. predicted values (on the left) and Williams Plot (on the right) for the P.subcapitata PCP split by random model. pEC50 P.subcapitata = -9.50 + 20.55 Mp + 12.36 GGI8 - Ordered by response splitting Graphs in the main text pEC50 P.subcapitata = -10.60 + 14.05 GGI8 + 21.83 Mp Electronic Supplementary Material (ESI) for Green Chemistry. This journal is © The Royal Society of Chemistry 2016