Exhibit 2.1 PURCHASE AND SALE AGREEMENT dated as of June 22, 1998 by and among GENZYME CORPORATION RESEARCH AND DIAGNOSTIC SYSTEMS, INC.Purchase and Sale Agreement • July 16th, 1998 • Techne Corp /Mn/ • Biological products, (no disgnostic substances) • Minnesota
Contract Type FiledJuly 16th, 1998 Company Industry Jurisdiction
SECTION 1 Restrictions on Transferability of Securities; Registration RightsS Rights Agreement • July 16th, 1998 • Techne Corp /Mn/ • Biological products, (no disgnostic substances) • Minnesota
Contract Type FiledJuly 16th, 1998 Company Industry Jurisdiction