Useful Links

Please find below a selection of links to external websites that we think may be useful or of interest to users of Sigma-Aldrich products.

Chemfinder - Useful in identifying CAS numbers and alternative names for chemicals
Chemexper - Useful in identifying alternative suppliers
Brenda - A comprehensive enzyme information system
Protocol Online - A source of protocols and troubleshooting information discussion forums etc. for a wide variety of laboratory techniques

Partner Websites
Corning (Lifescience) - Useful for technical information on Corning labware products
European Collection of Animal Cell Cultures (ECACC) - useful for searching for ECACC cell line reference numbers and handling recommendations

Sigma-Aldrich takes no responsibility for the accuracy of information on external websites, or for any consequences arising from their use.