Complement C4

C4 is the fourth complement component. It is one of a group of serum proteins that are active in the body’s immune response to destroy infectious agents. Measurement of the level of the 4th complement component (C4) in serum can aid in the diagnosis of immunological disorders, especially those associated with deficiencies of complement components.


  • For the quantitative measurement of human complement C4 (4th complement component) by immunoturbidimetric assay.
  • Reagents are ready to use.

Control: ITA Controls

Product Available in select countries in the following territories:

Americas - Not available in all countries. Contact us for availability.


Have a questions about a product or want a sample?

Contact Us

Ordering Information

Name Size Part Package Insert
COMPLEMENT C4 4x20 mL (R1); 2x10 mL (R2) KAI-010 N/A

Pricing and ordering details are determined by several factors.  Please provide your contact information and we will be in touch shortly with more detailed product information.

Get in Touch

When you’re ready to order, we’re here to help.

Fill out the form below and someone from our team will get back to you shortly.