I-2581 is a synthetic thrombin inhibitor. **

This product is also a component complexed with a chromogenic substrate reagent in the following kits:

• Chromogenix Coamatic Factor VIII (complexed with substrate S-2765) - catalog # K822585 (822585)
• Chromogenix Coatest SP Factor VIII (complexed with substrate S-2765) - catalog # K824086 (824086)
• Chromogenix Coatest SP4 Factor VIII (complexed with substrate S-2765) - catalog # K824094 (824094)

** Please note that a special order for this item may be required.