Necrostatin-34 is a RIPK1 kinase inhibitor, stabilizing RIPK1 kinase in an inactive conformation by occupying a distinct binding pocket in the kinase domain.

RIPK1-IN-9 is a potent and selective inhibitor of RIPK1, a dihydronaphthone compound, which inhibits U937 and L929 cells with an IC50 of 2 nM and 1.3 nM, respectively.

Necrostatin-5 (Nec-5) is a selective RIP1 kinase inhibitor and cell necrosis inhibitor that prevents the death of Fadd-deficient Jurkat cells treated with TNF-α, with an EC50 of 240 nM.