Databases

ChemSpider is a free chemical structure database providing fast text and structure search access to over 67 million structures from hundreds of data sources.

Time-span: 1970 - present

Chimica provides chemistry and chemical engineering researchers with the current and trustworthy information they need to achieve successful results. A database of literature abstracts created specifically for chemistry and chemical engineering research, Chimica indexes the most influential, international chemistry journals. Weekly updates keep engineers stay current with the latest developments in their field, including inorganic chemistry, organic chemistry, applied chemistry, analytical chemistry, chemical engineering and general chemistry.

Time span: 1884 - present

Compendex (also called Engineering Index) includes millions of bibliographic citations and abstracts from thousands of engineering journals and conference proceedings. It is combined with the Engineering Index Backfile (1884-1969) to cover over 120 years of core engineering literature. The search can be limited by document type, treatment type, language, or date