SIGMA–ALDRICH CORPORATION 7.687% Senior Notes due September 12, 2010 NOTE PURCHASE AGREEMENT Dated: September 12, 2000Sigma • February 26th, 2008 • Sigma Aldrich Corp • Wholesale-chemicals & allied products • Illinois
Sigma–Aldrich Corporation, a Delaware corporation, together with its successors and assigns (the “Company”), agrees with you as follows:
