Notes: Anti-SARS-CoV-2 Spike Glycoprotein RBD IgG Negative Control has been tested and formulated to work exclusively with Cayman’s Anti-SARS-CoV-2 Spike Glycoprotein RBD IgG ELISA Kit (Item No. 502110). Please visit Anti-SARS-CoV-2 Spike Glycoprotein RBD IgG ELISA Kit (Item No. 502110) for the kit protocol, procedures, and product handling.