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MedKoo CAT#: 402210

CAS#: 1189558-88-0

Description: CDKI-83 is a potent CDK9 inhibitor. The compound shows effective anti-proliferative activity in human tumour cell lines with GI50 <1 μM, and is capable of inducing apoptosis in A2780 human ovarian cancer cells as determined by the activated caspase-3, Annexin V/PI double staining and accumulated cells at the sub-G1 phase of cellcycle. The research results suggest that combined inhibition of CDK9 and CDK1 may result in the effective induction of apoptosis and CDKI-83 has the potential to be developed as an anti-cancer agent.

Price and Availability

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Pricing updated 2020-06-05. Prices are subject to change without notice.

CDKI-83 is not in stock, may be available through custom synthesis. For cost-effective reason, minimum 1 gram order is requested. The product will be characterized by NMR, HPLC and MS analysis. Purity (HPLC) is usually >98%. CoA, QC data, MSDS will be provided when product is successfully made. The estimated lead time is 2-3 months. Please send email to to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 402210
Name: CDKI-83
CAS#: 1189558-88-0
Chemical Formula: C21H23N7O3S2
Exact Mass: 485.13038
Molecular Weight: 485.58
Elemental Analysis: C, 51.94; H, 4.77; N, 20.19; O, 9.88; S, 13.21

Synonym: CDKI83; CDKI-83; CDKI 83.

IUPAC/Chemical Name: 4-(4-methyl-2-(methylamino)thiazol-5-yl)-2-((4-methyl-3-(morpholinosulfonyl)phenyl)amino)pyrimidine-5-carbonitrile


InChi Code: InChI=1S/C21H23N7O3S2/c1-13-4-5-16(10-17(13)33(29,30)28-6-8-31-9-7-28)26-20-24-12-15(11-22)18(27-20)19-14(2)25-21(23-3)32-19/h4-5,10,12H,6-9H2,1-3H3,(H,23,25)(H,24,26,27)


Technical Data

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:

Additional Information

The following activity data  of CDKI-83 was directly copied from  Invest New Drugs. 2012 Jun;30(3):889-97:


1: Liu X, Lam F, Shi S, Fischer PM, Wang S. In vitro antitumor mechanism of a novel cyclin-dependent kinase inhibitor CDKI-83. Invest New Drugs. 2012 Jun;30(3):889-97. doi: 10.1007/s10637-011-9641-5. Epub 2011 Feb 18. PubMed PMID:  21331744.