The EPA just released a draft database of 1,173 hydraulic fracturing-related chemicals that were listed in the external review draft Assessment of the Potential Impacts of Hydraulic Fracturing for Oil and Gas on Drinking Water Resources (released June 4, 2015). The database provides physicochemical and toxicological information from a host of different sources, including: EPI Suite, LeadScope, QikiProp, Reaxys, IRIS, PPRTV, ATSDR, among others. The database also contains background information about how the list of chemicals was compiled.
The full draft database can be downloaded here.