Science

Physical properties of over seventy popular solvents and liquids. Sort in ascending or descending order of the desired criteria.

A free online ecdysteroids database. Includes ecdysteroid containing products catalogue.

A repository of information relative to the nomenclature of enzymes.

Web-based molecular structure database, with drawing tool to aid search. Encourages suppliers to register their products.

Provides a database of these compounds.

A freely accessible database of chemicals with synthesis references and physical properties.

Free web-based database which allows retreival of information on chemical substances.

The online version of the Encyclopedia of Reagents for Organic Synthesis.