PubChem

PubChem is a free database that provides information on chemical substances, biological activities, and chemical reactions, managed by the National Center for Biotechnology Information of the National Institutes of Health. It contains extensive data on millions of chemical substances, including identifiers, physicochemical properties, and safety information. The database also includes information on the biological activities and experimental results of chemical substances, as well as chemical reactions and synthetic pathways. Accessible online for free and featuring a user-friendly interface, it is widely used by researchers, educators, and students. PubChem contributes to research and education across various fields such as chemistry, biology, pharmacology, and material science, playing a crucial role in the advancement of scientific discoveries and the dissemination of knowledge.