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

MedKoo CAT#: 406448

CAS#: 891849-87-9

Description: ZK-Thiazolidinone, also known as TAL, is an ATP-competitive inhibitor of PLK1. In vitro, ZK-Thiazolidinone counteracts the role of Plk1 in previously established functions, notably, sister chromatid separation, centrosome maturation, and bipolar spindle assembly. In vivo, ZK-Thiazolidinone selectively inhibits PLK1 and causes a prometaphase-like mitotic (G2–M) arrest. ZK-Thiazolidinone inhibits human PLK1 (IC50, 19± 12 nM) and various human and mouse tumor cell lines (IC50, 0.2–1.3 μM). ZK-Thiazolidinone impairs centrosome maturation.

Chemical Structure

CAS# 891849-87-9

Theoretical Analysis

MedKoo Cat#: 406448
Name: ZK-Thiazolidinone
CAS#: 891849-87-9
Chemical Formula: C23H30F3N5O2S
Exact Mass: 497.20723
Molecular Weight: 497.57681
Elemental Analysis: C, 55.52; H, 6.08; F, 11.45; N, 14.07; O, 6.43; S, 6.44

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Synonym: ZKThiazolidinone TAL.

IUPAC/Chemical Name: 2-cyano-2-(3-ethyl-4-oxo-5-(((3-(2-(pyrrolidin-1-yl)ethyl)phenyl)amino)methyl)thiazolidin-2-yl)-N-(2,2,2-trifluoroethyl)acetamide


InChi Code: InChI=1S/C23H30F3N5O2S/c1-2-31-21(33)19(34-22(31)18(13-27)20(32)29-15-23(24,25)26)14-28-17-7-5-6-16(12-17)8-11-30-9-3-4-10-30/h5-7,12,18-19,22,28H,2-4,8-11,14-15H2,1H3,(H,29,32)


Appearance: white solid powder

Purity: >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).

Solubility: Soluble in DMSO, not in water

Shelf Life: >2 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: 2934.99.9001

Preparing Stock Solutions

The following data is based on the product molecular weight 497.57681 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.

Recalculate based on batch purity %
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: Burkard ME, Santamaria A, Jallepalli PV. Enabling and disabling polo-like kinase 1 inhibition through chemical genetics. ACS Chem Biol. 2012 Jun 15;7(6):978-81. doi: 10.1021/cb200551p. Epub 2012 Mar 20. PubMed PMID: 22422077; PubMed Central PMCID: PMC3376236.

2: Schöffski P. Polo-like kinase (PLK) inhibitors in preclinical and early clinical development in oncology. Oncologist. 2009 Jun;14(6):559-70. doi: 10.1634/theoncologist.2009-0010. Epub 2009 May 27. Review. PubMed PMID: 19474163.

3: Santamaria A, Neef R, Eberspächer U, Eis K, Husemann M, Mumberg D, Prechtl S, Schulze V, Siemeister G, Wortmann L, Barr FA, Nigg EA. Use of the novel Plk1 inhibitor ZK-thiazolidinone to elucidate functions of Plk1 in early and late stages of mitosis. Mol Biol Cell. 2007 Oct;18(10):4024-36. Epub 2007 Aug 1. PubMed PMID: 17671160; PubMed Central PMCID: PMC1995727.

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