53774-63-3

L-NIL produces a concentration-dependent inhibition of both the mouse inducible NOS (miNOS) and the rat brain constitutive NOS (rcNOS) and is considerably more potent for miNOS. The IC ₅₀ values for L-NIL with miNOS and rcNOS are 3.3 and 92 pM, respectively, indicating that it is 28-fold more selective for miNOS. In addition, L-NIL has approximately 6-fold greater potency for miNOS than either L -NMA or L-NNA.

IC50: 3.3 μM (mouse inducible NO synthase), 92 μM (rat brain constitutive NO synthase)