The STELLUX Chemi Human C-peptide ELISA Lab Pack is an Registered For In Vitro Diagnostic Use tool for the quantification of human C-peptide in serum and plasma samples in both clinical and research laboratory settings. Broad Dynamic Range of 4.5 - 12,960 pg/mL* Superior Sensitivity LOD: <4.32 pg/mL Functional Sensitivity: <18 pg/mL Now offered in a convenient 5 plate package *Lot dependent as standards are lyophilized Class I Device.