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  • 493800 - PARP Inhibitor VI, NU1025 - CAS 90417-38-2 - Calbiochem

493800 Sigma-Aldrich

PARP Inhibitor VI, NU1025 - CAS 90417-38-2 - Calbiochem

The PARP Inhibitor VI, NU1025, also referenced under CAS 90417-38-2, controls the biological activity of PARP. This small molecule/inhibitor is primarily used for Cell Structure applications.

Synonym: 8-Hydroxy-2-methylquinazoline-4-one, PARP Inhibitor VI, NU1025 - CAS 90417-38-2 - Calbiochem

  • CAS Number 90417-38-2

  • Empirical Formula (Hill Notation) C9H8N2O2

  • Molecular Weight 176.17

  •  MDL number MFCD00942555



Related Categories Biochemicals and Reagents, Enzyme Inhibitors, Enzyme Inhibitors by Enzyme, Enzymes, Inhibitors, and Substrates, P to Q,
Quality Level   100
assay   ≥98% (HPLC)
form   solid
mfr. no.   Calbiochem®
storage condition   OK to freeze
  protect from light
storage conditions   -20C
color   off-white
solubility   DMSO: 25 mg/mL
shipped in   ambient
InChI   1S/C9H8N2O2/c1-5-10-8-6(9(13)11-5)3-2-4-7(8)12/h2-4,12H,1H3,(H,10,11,13)


General description

A potent inhibitor poly(ADP-ribose) polymerase (PARP; IC50 = 0.40 µM). Has been shown to potentiate the cytotoxicity of the DNA-methylating agent MTIC [5-(3-N-methyltriazen-1-yl)-imidazole-4-carboxamide] and ionizing irradiation in murine L210 leukemia cells.

A potent poly(ADP-ribose) polymerase (PARP) inhibitor (IC50 = 400 nM) that potentiates the cytotoxicity of various DNA-active agents, including the DNA-methylating compound MTIC [5-(3-N-methyltriazen-1-yl)-imidazole-4-carboxamide], the DNA strand break-inducing drug temozolomide, topotecan, bleomycin, and ionizing radiation in murine L1210 leukemia cells, Chinese hamster ovary cells, and in a variety of human tumor cell lines.


5 mg in Plastic ampoule

Biochem/physiol Actions

Cell permeable: no

Primary Target

Product does not compete with ATP.

Reversible: no

Target IC50: 0.4 µM against poly(ADP-ribose) polymerase (PARP)


Packaged under inert gas


Toxicity: Standard Handling (A)

Preparation Note

This solution can be further diluted 1:100 in tissue culture medium before use.


Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 6 months at -20°C.

Other Notes

Delaney, C.A., et al. 2000. Clin. Cancer Res.6, 2860.
Boulton, S., et al. 1999. Carcinogenesis20, 199.
Bowman, K.J., et al. 1998. Br. J. Cancer 78, 1269.
Griffin, R.J., et al. 1998. J. Med. Chem. 41, 5247.
Griffin, R.J., et al. 1996. Pharm. Sci. 2, 43.
Boulton, S., et al. 1995. Br. J. Cancer 72, 849.
Griffin, R.J., et al. 1995. Anticancer Drug Res. 10, 507.

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.
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