Technical Database Services, Inc. (TDS) develops and distributes software for the calculation and retrieval of chemical property data. We are a leading source for data used in R&D and production. Our clients include scientists and engineers in the chemical, pharmaceutical and polymer industries who require ready access to accurate data on pure chemicals and mixtures. Data essential to process simulation, product and process development, drug discovery, equipment design, solvent selection, environmental sustainability and compliance and process safety is obtained quickly and conveniently - even for novel and complex structures.