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MedKoo CAT#: 200712

CAS#: 856691-93-5

Description: CEP-11981 is an orally bioavailable inhibitor of vascular endothelial growth factor receptor (VEGFR) and Tie2 receptor tyrosine kinases with potential antiangiogenic and antineoplastic activities. Pan-VEGFR/Tie2 tyrosine kinase inhibitor CEP-11981 selectively binds to VEGFR and Tie2 receptor tyrosine kinases, which may result the inhibition of endothelial cell migration, proliferation and survival and the inhibition of tumor cell proliferation and tumor cell death.

Price and Availability

Size Price Shipping out time Quantity
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Pricing updated 2020-08-12. Prices are subject to change without notice.

CEP-11981 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 sales@medkoo.com to inquire quote.

Chemical Structure


Theoretical Analysis

MedKoo Cat#: 200712
Name: CEP-11981
CAS#: 856691-93-5
Chemical Formula: C28H27N7O
Exact Mass: 477.22771
Molecular Weight: 477.56
Elemental Analysis: C, 70.42; H, 5.70; N, 20.53; O, 3.35

Synonym: CEP11981; CEP 11981; CEP11981

IUPAC/Chemical Name: 13-isobutyl-4-methyl-10-(pyrimidin-2-ylamino)-4,7,8,13-tetrahydro-1H-indazolo[5,4-a]pyrrolo[3,4-c]carbazol-6(2H)-one


InChi Code: InChI=1S/C28H27N7O/c1-15(2)13-35-22-8-5-16(32-28-29-9-4-10-30-28)11-18(22)24-19-12-31-27(36)25(19)23-17(26(24)35)6-7-21-20(23)14-34(3)33-21/h4-5,8-11,14-15H,6-7,12-13H2,1-3H3,(H,31,36)(H,29,30,32)


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:
>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: Hudkins RL, Becknell NC, Zulli AL, Underiner TL, Angeles TS, Aimone LD, Albom  MS, Chang H, Miknyoczki SJ, Hunter K, Jones-Bolin S, Zhao H, Bacon ER, Mallamo JP, Ator MA, Ruggeri BA. Synthesis and biological profile of the pan-vascular endothelial growth factor receptor/tyrosine kinase with immunoglobulin and epidermal growth factor-like homology domains 2 (VEGF-R/TIE-2) inhibitor 11-(2-methylpropyl)-12,13-dihydro-2-methyl-8-(pyrimidin-2-ylamino)-4H-indazolo[5,4-a]pyrrolo[3,4-c]carbazol-4-one (CEP-11981): a novel oncology therapeutic agent. J Med Chem. 2012 Jan 26;55(2):903-13. doi: 10.1021/jm201449n. Epub 2012 Jan 6. Erratum in: J Med Chem. 2012 Apr 26;55(8):4025. PubMed PMID: 22148921.