ASSAYS FOR RESEARCH PURPOSES; BIOCHEMICAL REAGENTS USED FOR NON-MEDICAL PURPOSES; BIOCHEMICALS FOR IN VITRO AND IN VIVO SCIENTIFIC USE; CHEMICAL TEST KITS FOR SCIENTIFIC AND CLINICAL RESEARCH PURPOSES FOR LABORATORY OR RESEARCH USE; CHEMICALS FOR USE IN THE BIOCHEMICAL AND CHEMICAL INDUSTRY; CHEMICALS FOR USE IN BIOTECHNOLOGICAL PRODUCT DEVELOPMENT; DIAGNOSTIC PREPARATIONS FOR SCIENTIFIC USE; DIAGNOSTIC PREPARATIONS USED IN SCIENCE; DIAGNOSTIC PREPARATIONS FOR CLINICAL OR MEDICAL LABORATORY U...