PARPYnD is the first cell-active photoaffinity probe (AfBP) for PARP protein class, based on triple PARP1/2/6 inhibitor AZ9482.PARPYnD is a robust tool for profiling PARP1/2 and is used to profile clinical PARP inhibitor olaparib, identifying several novel off-target proteins.PARPYnD can enrich recombinant PARP6 spiked into cellular lysates and inhibits PARP6 in cell-free assays, it does not label PARP6 in intact cells.PARPYnD inhibits PARP1/2/6 with IC50 of 38/6/230 nM, respectively.

RP12146 (RP12146) is a novel, selective, and potent small molecule inhibitor of PARP1/2 with IC50 of 0.6/0.5 nM, with several fold selectivity over other isoforms.RP12146 inhibited cell growth in both BRCA mutant and non-BRCA mutant cancer cell lines with a GI50 range of 0.043 to 19.83 µM in a dose dependent manner.RP12146 demonstrated anti-tumor activities in both tumor size and tumor weight in OVCAR3 xenograft model.

4-Aminonaphthalimide is a potent PARP inhibitor and potentiates the cytotoxicity of γ-radiation in cancer cells.

DPQ is a potent PARP-1 inhibitor. DPQ can reduce the N-methyl-d-aspartate (NMDA)-induced PARP activation, restoring ATP to near control levels and significantly attenuating neuronal injury in the severe NMDA exposure model. DPQ can be used for researching neuroprotection.

SK-575-NEG (compound 28), a methylation counterpart of SK-575, is synthesized by methylation of the amino group of piperidine-2,6-dione in SK-575 as an control compound. SK-575-NEG is strongly bound to PARP1, with an IC50 of 2.64 nM. SK-575-NEG was completely ineffective in inducing PARP1 degradation in MDA-MB-436 and Capan-1 cells at concentrations up to 1 μM.

Basroparib is a potent poly (ADP-ribose) polymerase (PARP) inhibitor, with antineoplastic activity.

TIQ-A is a potent TNKS (poly-ART, PARP) inhibitor, with an IC50 of 24 nM for TNKS2. TIQ-A is a potential anti-ischemic agent.

Picolinamide (2-Picolinamide) is an inhibitor of Poly(ADP-ribose) synthetase of nuclei from rat pancreatic islet cells.

RBN-3143 is a potent and NAD+-competitive catalytic PARP14 inhibitor with an IC50 value of 4 nM. RBN-3143 inhibits PARP14-mediated ADP-ribosylation and stabilizes PARP14 in cell lines. RBN-3143 can be used in research of lung inflammation.

OUL232 is a potent inhibitor of mono-ARTs PARP7, PARP10, PARP11, PARP12, PARP14, and PARP15. OUL232 is the most potent PARP10 inhibitor described to date (IC50=7.8 nM), as well as the first PARP12 inhibitor ever reported.

AMXI-5001 (AMXI 5001) is a novel, highly potent, orally active dual PARP1/2 (IC50 5/0.05 nM) and microtubule polymerization inhibitor, inhibits intracellular PAR formation with IC50 of 7 nM.

G-631 is a potent and selective TNKS1/2 inhibitor with IC50 of 7 nM in biochemical assays of tankyrase auto-PARsylation activity, and cellular potency of 8 nM (HEK293).

KMR-206 (KMR206) is a potent, selective PARP7 inhibitor with IC50 of 13.7 nM, displays 75-fold selectivity for PARP7 over PARP2 and does not inhibit PARP1 up to 3 uM.

kt-3283 is a novel bi-functional PARP-HDAC inhibitor with IC50 of 0.338 nM, 2.19 nM and 1.89 uM for PARP1, PARP2 and HDACs, respectively.

Mortaparib is a dual inhibitor of mortalin-PARP1 interaction, and a p53 activating cytotoxic compound, induces activation of growth arrest and apoptosis signaling in cancer cells in vitro and in vivo.

Morataprib Plus is a novel anticancer small molecule that disrupts mortalin-p53 interaction, prevents the interaction of mortalin with p53 resulting in the activation of growth arrest and apoptosis mediated by activation of p21WAF1 or BAX and PUMA signall

Thioparib is a next-generation potent, orally bioavailable pan-PARP inhibitor with IC50 of 0.13/0.006 nM (PARP1/2), overcomes multiple PARPi resistance both in vitro and in vivo.