About REACHAcross

REACHAcross™ software was pioneered by Thomas Hartung, MD, PhD, the Chair for Evidence-based Toxicology at Johns Hopkins University, Thomas Luechtefeld, a PhD student, and UL’s scientists and toxicologists. The tool makes publicly available data machine-readable and searchable using natural language processing. As a result of this work, toxicological data can now be explored on a new scale for computational toxicology.

About UL

UL is a global independent safety science company with more than a century of expertise innovating safety solutions from the public adoption of electricity to new breakthroughs in sustainability, renewable energy and nanotechnology. Dedicated to promoting safe living and working environments, UL helps safeguard people, products and places in important ways, facilitating trade and providing peace of mind.


THOMAS HARTUNG, MD, PhD, The Johns Hopkins University Bloomberg School of Public Health
Thomas Hartung is a recognized authority on toxicology with a broad background in clinical and experimental pharmacology. The goal of his work is to create a paradigm shift in toxicity testing to improve public health.  With more than 350 publications to his name, he previously served as the head of the European Center for the Validation of Alternative Methods of the European Commission (2002-2008), and is involved in the implementation of the 2007 NRC vision document “Toxicity Testing in the 21st Century – a vision and a strategy.”  Hartung relocated to the US early 2009 to establish the directorship for the Center for Alternatives to Animal Testing (CAAT) a laboratory for developmental neurotoxicity research based on genomics and metabolomics the respective technologies were made available by a Thought-Leader Award from Agilent.

Tom Luechtefeld co-founded Toxtrack and brings together an academic and entrepreneurial background in computer science and toxicology. He is responsible for development of computational toxicology algorithms at Toxtrack. Tom integrates machine learning approaches with traditional chemical informatics to make predictive models for chemical hazards. With an academic training in molecular toxicology, machine learning and applied mathematics, Tom builds applications leveraging big data to identify chemical risks. Tom is a PhD candidate in molecular toxicology at Johns Hopkins and has formal training in machine learning and computer science at Johns Hopkins.

Dr. Craig Rowlands is Senior Toxicologist with UL where he provides leadership in the development of new business models and capabilities for safety assessments of consumer products. With over two decades of experience, Craig is an expert in navigating regulatory compliance for new substances and products through delivery of the appropriate safety data and risk assessments. His research and policy advocacy efforts are in the areas of predictive toxicology with a focus on sustainability and the development of non-animal alternative testing strategies towards reducing environmental, health and safety risks of chemicals.