Certain features of will be down for maintenance the evening of Friday August 18th starting at 8:00 pm CDT until Saturday August 19th at 12:01 pm CDT.   Please note that you still have telephone and email access to our local offices. We apologize for any inconvenience.



If you have never ordered from Sigma-Aldrich® in the past…

To begin ordering through the web site, please registeror update your profile and select the Request Ordering Access link on the Order Center. Your request will be reviewed promptly by our screening department. Due to the hazardous or regulated nature of many of the products sold by Sigma-Aldrich, we require a certain amount of due diligence before activating online ordering access.

If your organization has never ordered from Sigma-Aldrich, we would prefer that you contact us by phone for your first order. The new account set-up process generally requires a more information than this form can accomodate.

Useful information for existing customers