Chemistry and Biochemistry

Information on chemical structures, identifiers, chemical and physical properties, biological activities, patents, health, safety, toxicity data, and more

Provides access to almost 21.5 million unique chemical entities sourced from over 200 different data sources and integration to a multitude of other online services.

Includes chemical characterization of materials, process metrology, chemical and biochemical sensing, nanotechnology, healthcare measurements, environmental measurements, physical property data, chemical and biochemical data, bio-molecules and materials, DNA technologies, and international measurement standards.

Freely accessible database of chemical substances with their synthesis references and physical properties such as melting point, boiling point and density.

Contains CAS Registry Numbers for approximately 7,900 chemicals of widespread general public interest.

Interactive periodic table.

A tool to search for Safety Data Sheets (SDS) by substances name, manufacturer, and CAS #