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DM5167 hydrochloride

Chemical Structure : DM5167 hydrochloride

CAS No.: 2640677-68-3

DM5167 hydrochloride (PARP1-IN-33, Lotixparib hydrochloride)

Catalog No.: PC-23684Not For Human Use, Lab Use Only.

Lotixparib hydrochloride (DM5167 hydrochloride) is a potent, selective PARP1 inhibitor with IC50 of 0.41 nM, displays >300-fold preference for PARP1 over PARP2 in in vitro enzymatic and DNA capture assays.

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Purity & Documentation Purity: >98% (HPLC) Select Batch:

Biological Activity

Lotixparib hydrochloride (DM5167 hydrochloride) is a potent, selective PARP1 inhibitor with IC50 of 0.41 nM, displays >300-fold preference for PARP1 over PARP2 in in vitro enzymatic and DNA capture assays.
DM5167 shows higher selectivity than AZD5305 in the enzymatic assay.
DM5167 efficiently reduces growth of triple-negative breast cancers.
DM5167 achieved a 45.8% tumor growth inhibition at a dose of 50 mg/kg in orthotopic xenograft model using triple-negative breast cancer cell lines.

Physicochemical Properties

M.Wt 426.92
Formula C23H24ClFN4O
Appearance Solid
CAS No.
Storage
Solide Powder
-20°C 12 Months; 4°C 6 Months
In Solvent
-80°C 6 Months; -20°C 6 Months
Shipping
Solubility

10 mM in DMSO

Chemical Name/SMILES

Benzonitrile, 4-[4-[3-(8-fluoro-1,2-dihydro-1-oxo-3-isoquinolinyl)propyl]-1-piperazinyl]-, hydrochloride

References

1. Patent WO2021086077 A1.
2. Kim JW, et al. Pharm Res. 2025 Oct 22. doi: 10.1007/s11095-025-03939-8.
3. Sujin Nam, et al. Cancer Res (2023) 83 (7_Supplement): 509.

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