Siân Marsden-Jones, PhD, joined wca in September 2015, on the completion of her PhD in chemistry. She has a background in QSAR modelling as well as practical analytical chemistry techniques. Siân has experience within the pharmaceutical industry having undertaken a placement year with AstraZeneca as part of her undergraduate degree, working with both drug substances and drug products. She works on REACh-related projects, involving data review and assessment, robust study summary preparation, IUCLID6 entry and management, and data gap analysis.