Add to Cart Compare Quick view Rat Insulin receptor substrate 1/IRS1 ELISA Kit (RTFI00423) MSRP: Now: $857 Was: Product Code: RTFI00423 Detection Method: Sandwich ELISA, Double Antibody Sensitivity: 0.188 ng/mL Range: 0.313-20 ng/mL MSRP: Now: $857 Was: Add to Cart Compare Quick view