D-Phenylalanyl-L-2-piperidinecarbonyl-N-(4-nitro phenyl)-L-argininamide; H-D-Phe-pip-arg-pna; Chromogenic substrate S-2238; D-Phe-Pip-Arg-PNA; D-F-Pip-R-PNA; H-Phe-pip-arg-pna; D-Phe-Pip-Arg-paranitroanilide; H-Phe-pip-arg-p-nitroanilide; S 2238; H-D-Phenylalanyl-pip-arg-p-nitroanilide; AC1Q5KFD; AC1L3XF1; H-D-Phenylalanyl-L-pipecolyl-arginine-nitroanilide; (2s)-n-{(2s)-5-[(diaminomethylidene)amino]-1-[(4-nitrophenyl)amino]-1-oxopentan-2-yl}-1-(d-phenylalanyl)piperidine-2-carboxamidato(3-); BDBM12678; YDMBNDUHUNWWRP-VJBWXMMDSA-N; BDBM233013; ZINC14950391