Chemistry: Reference Sources

Online dictionary of chemicals, including names, synonyms, and chemical structures

CAS Common Chemistry is an open community resource for accessing chemical information. Nearly 500,000 chemical substances from CAS REGISTRY® cover areas of community interest, including common and frequently regulated chemicals, and those relevant to high school and undergraduate chemistry classes.

Tutorials, discussions, drills, and data designed primarily for the undergraduate student of chemistry.

ChemSpider is a free chemical structure database providing fast text and structure search access to over 100 million structures from hundreds of data sources.

The NIST Chemistry WebBook provides users with easy access to chemical and physical property data for chemical species through the internet. The data provided in the site are from collections maintained by the NIST Standard Reference Data Program and outside contributors. Data in the WebBook system are organized by chemical species. The WebBook system allows users to search for chemical species by various means. Once the desired species has been identified, the system will display data for the species.

SIRCh provides links to factual sources on the Internet where answers can be found to chemical questions.

Free, comprehensive dictionary of chemical terminology as provided by the International Union of Pure and Applied Chemistry (IUPAC).

The Royal Society of Chemistry's interactive periodic table features history, alchemy, podcasts, videos, and data trends across the periodic table.

Periodic Table Live! allows you to explore a broad range of information about the elements, their reactions, their properties, their structures and their histories.

The Periodic Table but with videos! Each element is explained by an accompanying video.

An interactive periodic table.