ST. LOUIS--(BUSINESS WIRE)--Jan. 25, 2006--Sigma-Aldrich Corporation (NASDAQ:SIAL), will hold its quarterly conference call to discuss fourth quarter results on Wednesday, February 15, 2006, at 11:00 a.m. Eastern Time (10 a.m. Central Time). This call is being webcast by Thomson/CCBN and can be accessed at Sigma-Aldrich’s Web site at www.sigma-aldrich.com.
