h d phe pip arg pna acetate

H-D-Phe-Pip-Arg-pNA acetate is a chromogenic substrate whose sequence mimics the N-terminal region of thrombin's natural substrate fibrinogen α-chain. It is highly specific to thrombin and can be used for the activity detection of antithrombin Ⅲ heparin cofactor (AT-III). The AT-III detection method based on this chromogenic substrate features high sensitivity, accurate results and simple operation.

H-D-Phe-Pip-Arg-pNA hydrochloride, a chromogenic substrate, mimics the N-terminal segment of the A alpha chain of fibrinogen, the native substrate of thrombin. It is specific to thrombin and is used for quantifying antithrombin-heparin cofactor (AT-III), enabling a sensitive, accurate, and straightforward AT-III assay.

S 2238 is a chromogenic substrate for thrombin that is used in amidolytic assay.