r² Diagnostics, a sister company to Enzyme Research Laboratories (ERL), provides general and specialty reagents to the clinical coagulation laboratory.  ERL is known worldwide for purified coagulation factors and research reagents.  r² Diagnostics was organized to incorporate ERL’s high purity proteins and reagents into clinical diagnostic kits manufactured with “end-to-end” control over the materials and processes.  

Enzyme Research Laboratories (ERL) is a specialized manufacturer of purified proteins of the coagulation and fibrinolytic pathways for research and for further manufacture.  Our product line includes zymogens, activated enzymes, des-gla domain proteins, and active site blocked proteins from human plasma, animal plasma, and human platelets.

We also offer monoclonal and polyclonal antibodies, immunodepleted plasmas, and matched ELISA reagents.  Custom purification and contract services are available for both academic investigators and for commercial partners.