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MedKoo CAT#: 406334

CAS#: 1314096-68-8

Description: Ibulocydine is a potent CDK inhibitor. Ibulocydine has high activity against Cdk7/cyclin H/Mat1 and Cdk9/cyclin T. Ibulocydine inhibited the growth of HCC cells more effectively than other Cdk inhibitors, including olomoucine and roscovitine, whereas ibulocydine as well as the other Cdk inhibitors and BMK-Y101 minimally influenced the growth of normal hepatocyte cells. Ibulocydine induced apoptosis in HCC cells, most likely by inhibiting Cdk7 and Cdk9. In vitro treatment of HCC cells with ibulocydine rapidly blocked phosphorylation of the carboxyl-terminal domain (CTD) of the large subunit of RNA polymerase II, a process mediated by Cdk7/9. Anti-apoptotic gene products such as Mcl-1, survivin, and X-linked IAP (XIAP) are crucial for the survival of many cell types, including HCC. Following the inhibition of RNA polymerase II phosphorylation, ibulocydine caused rapid down-regulation of Mcl-1, survivin, and XIAP, thus inducing apoptosis. Furthermore, ibulocydine effectively induced apoptosis in HCC xenografts with no toxic side effects. These results suggest that ibulocydine is a strong candidate anti-cancer drug for the treatment of HCC.

Price and Availability

Size Price Shipping out time Quantity
Inquire bulk and customized quantity

Pricing updated 2020-08-06. Prices are subject to change without notice.

Ibulocydine is not in stock, but 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 sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 406334
Name: Ibulocydine
CAS#: 1314096-68-8
Chemical Formula: C16H20BrN5O6
Exact Mass: 457.0597
Molecular Weight: 458.26
Elemental Analysis: C, 41.93; H, 4.40; Br, 17.44; N, 15.28; O, 20.95

Synonym: Ibulocydine

IUPAC/Chemical Name: ((2S,3S,4S,5S)-5-(4-amino-6-bromo-5-carbamoyl-1H-pyrrolo[2,3-d]pyrimidin-1-yl)-3,4-dihydroxytetrahydrofuran-2-yl)methyl isobutyrate


InChi Code: InChI=1S/C16H20BrN5O6/c1-5(2)16(26)27-3-6-9(23)10(24)15(28-6)22-4-20-12(18)8-7(13(19)25)11(17)21-14(8)22/h4-6,9-10,15,23-24H,3,18H2,1-2H3,(H2,19,25)/t6-,9+,10-,15-/m0/s1

SMILES Code: CC(C)C(OC[C@@H]1O[C@H](N2C=NC(N)=C3C2=NC(Br)=C3C(N)=O)[C@@H](O)[C@@H]1O)=O

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:
0 – 4 C for short term (weeks to 1 month) or -20 C for long terms (months to years).

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:

Additional Information



1: Cho SJ, Kim YJ, Surh YJ, Kim BM, Lee SK. Ibulocydine is a novel prodrug Cdk inhibitor that effectively induces apoptosis in hepatocellular carcinoma cells. J Biol Chem. 2011 Jun 3;286(22):19662-71. doi: 10.1074/jbc.M110.209551. Epub 2011 Apr 8. PubMed PMID: 21478145; PubMed Central PMCID: PMC3103345.