CH3OCO-D-CHA-Gly-Arg-pNA acetate is a chromogenic substrate for factor Xa.
References:
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[2]. Patil DN, et al. Structural basis for dual inhibitory role of tamarind Kunitz inhibitor (TKI) against factor Xa and trypsin. FEBS J. 2012 Dec;279(24):4547-64.
















