Used in immunology research to quantify C3c, a breakdown product of complement component C3, in biological samples such as serum, plasma, or tissue homogenates. The kit enables researchers to assess complement system activation, particularly in studies related to inflammation, autoimmune diseases like lupus, and conditions involving immune complex deposition. It is commonly applied in clinical research settings to monitor disease progression and evaluate therapeutic responses in disorders affecting the complement pathway. The assay provides a sensitive and specific means to measure C3c levels, supporting investigations into renal diseases, sepsis, and neurodegenerative conditions where complement activation plays a key role.