Onvansertib free base

    WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 205779

CAS#: 1034616-18-6

Description: Onvansertib, also know as NMS-P937, PCM-075 and NMS1286937, is a n orally bioavailable, small-molecule Polo-like kinase 1 (PLK1) inhibitor with potential antineoplastic activity. Polo-like kinase 1 inhibitor NMS-1286937 selectively inhibits PLK1, inducing selective G2/M cell-cycle arrest followed by apoptosis in a variety of tumor cells while causing reversible cell-cycle arrest at the G1 and G2 stages without apoptosis in normal cells. PLK1 inhibition may result in the inhibition of proliferation in PLK1-overexpressing tumor cells. PLK1 is a serine/threonine protein kinase crucial in the regulation of mitosis.

Chemical Structure

Onvansertib free base
CAS# 1034616-18-6

Theoretical Analysis

MedKoo Cat#: 205779
Name: Onvansertib free base
CAS#: 1034616-18-6
Chemical Formula: C24H27F3N8O3
Exact Mass: 532.21582
Molecular Weight: 532.52
Elemental Analysis: C, 54.13; H, 5.11; F, 10.70; N, 21.04; O, 9.01

Size Price Shipping out time Quantity
10mg USD 290 2 Weeks
50mg USD 580 2 Weeks
100mg USD 940 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-08. Prices are subject to change without notice.

Onvansertib, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Synonym: PCM-075; PCM 075; PCM075; NMS1286937; NMS 1286937; NMS-1286937; NMS-P937; NMS-P-937; NMS-P 937; Onvansertib

IUPAC/Chemical Name: 1-(2-hydroxyethyl)-8-((5-(4-methylpiperazin-1-yl)-2-(trifluoromethoxy)phenyl)amino)-4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline-3-carboxamide


InChi Code: InChI=1S/C24H27F3N8O3/c1-33-6-8-34(9-7-33)15-3-5-18(38-24(25,26)27)17(12-15)30-23-29-13-14-2-4-16-20(22(28)37)32-35(10-11-36)21(16)19(14)31-23/h3,5,12-13,36H,2,4,6-11H2,1H3,(H2,28,37)(H,29,30,31)


Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>5 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 532.52 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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1: Hartsink-Segers SA, Exalto C, Allen M, Williamson D, Clifford SC, Horstmann M, Caron HN, Pieters R, Den Boer ML. Inhibiting Polo-like kinase 1 causes growth reduction and apoptosis in pediatric acute lymphoblastic leukemia cells. Haematologica. 2013 Jun 10. [Epub ahead of print] PubMed PMID: 23753023.

2: Casolaro A, Golay J, Albanese C, Ceruti R, Patton V, Cribioli S, Pezzoni A, Losa M, Texido G, Giussani U, Marchesi F, Amboldi N, Valsasina B, Bungaro S, Cazzaniga G, Rambaldi A, Introna M, Pesenti E, Alzani R. The Polo-Like Kinase 1 (PLK1) inhibitor NMS-P937 is effective in a new model of disseminated primary CD56+ acute monoblastic leukaemia. PLoS One. 2013;8(3):e58424. doi: 10.1371/journal.pone.0058424. Epub 2013 Mar 8. PubMed PMID: 23520509; PubMed Central PMCID: PMC3592825.

3: Valsasina B, Beria I, Alli C, Alzani R, Avanzi N, Ballinari D, Cappella P, Caruso M, Casolaro A, Ciavolella A, Cucchi U, De Ponti A, Felder E, Fiorentini F, Galvani A, Gianellini LM, Giorgini ML, Isacchi A, Lansen J, Pesenti E, Rizzi S, Rocchetti M, Sola F, Moll J. NMS-P937, an orally available, specific small-molecule polo-like kinase 1 inhibitor with antitumor activity in solid and hematologic malignancies. Mol Cancer Ther. 2012 Apr;11(4):1006-16. doi: 10.1158/1535-7163.MCT-11-0765. Epub 2012 Feb 7. PubMed PMID: 22319201.

4: Beria I, Bossi RT, Brasca MG, Caruso M, Ceccarelli W, Fachin G, Fasolini M, Forte B, Fiorentini F, Pesenti E, Pezzetta D, Posteri H, Scolaro A, Re Depaolini S, Valsasina B. NMS-P937, a 4,5-dihydro-1H-pyrazolo[4,3-h]quinazoline derivative as potent and selective Polo-like kinase 1 inhibitor. Bioorg Med Chem Lett. 2011 May 15;21(10):2969-74. doi: 10.1016/j.bmcl.2011.03.054. Epub 2011 Mar 21. PubMed PMID: 21470862.

Additional Information

onvansertib is an orally bioavailable, adenosine triphosphate (ATP) competitive inhibitor of polo-like kinase 1 (PLK1; PLK-1; STPK13), with potential antineoplastic activity. Upon administration, onvansertib selectively binds to and inhibits PLK1, which disrupts mitosis and induces selective G2/M cell-cycle arrest followed by apoptosis in PLK1-overexpressing tumor cells. PLK1, named after the polo gene of Drosophila melanogaster, is a serine/threonine kinase that is crucial for the regulation of mitosis, and plays a key role in tumor cell proliferation. PLK1 expression is upregulated in a variety of tumor cell types and high expression is associated with increased aggressiveness and poor prognosis