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MedKoo CAT#: 406413

CAS#: 98293-88-0

Description: OK-1035 is a potent and selective DNA-PK inhibitor. When a synthetic peptide was used as a substrate, OK-1035 caused 50% inhibition of DNA-PK activity at 8 microM. OK-1035 inhibited the phosphorylation by DNA-PK of consensus peptide as well as that of recombinant human wild type-p53. Kinetic studies indicated that OK-1035 inhibited DNA-PK activity in an ATP-competitive manner.

Price and Availability

Size Price Shipping out time Quantity
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Pricing updated 2020-10-20. Prices are subject to change without notice.

OK-1035 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#: 406413
Name: OK-1035
CAS#: 98293-88-0
Chemical Formula: C12H9N5O
Exact Mass: 239.08071
Molecular Weight: 239.23276
Elemental Analysis: C, 60.25; H, 3.79; N, 29.27; O, 6.69

Synonym: OK1035; OK 1035; OK-1035.

IUPAC/Chemical Name: (E)-2-(hydrazonomethyl)-6-oxo-1,6-dihydro-[3,4'-bipyridine]-5-carbonitrile


InChi Code: InChI=1S/C12H9N5O/c13-6-9-5-10(8-1-3-15-4-2-8)11(7-16-14)17-12(9)18/h1-5,7H,14H2,(H,17,18)/b16-7+


Technical Data

white 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: Stockley M, Clegg W, Fontana G, Golding BT, Martin N, Rigoreau LJ, Smith GC, Griffin RJ. Synthesis, crystal structure determination, and biological properties of the DNA-dependent protein kinase (DNA-PK) inhibitor 3-cyano-6-hydrazonomethyl-5-(4-pyridyl)pyrid-[1H]-2-one (OK-1035). Bioorg Med Chem Lett. 2001 Nov 5;11(21):2837-41. PubMed PMID: 11597411.

2: Chakravarthy BR, Walker T, Rasquinha I, Hill IE, MacManus JP. Activation of DNA-dependent protein kinase may play a role in apoptosis of human neuroblastoma cells. J Neurochem. 1999 Mar;72(3):933-42. PubMed PMID: 10037464.

3: Kruszewski M, Wojewódzka M, Iwaneńko T, Szumiel I, Okuyama A. Differential inhibitory effect of OK-1035 on DNA repair in L5178Y murine lymphoma sublines with functional or defective repair of double strand breaks. Mutat Res. 1998 Oct 21;409(1):31-6. PubMed PMID: 9806500.

4: Take Y, Kumano M, Teraoka H, Nishimura S, Okuyama A. DNA-dependent protein kinase inhibitor (OK-1035) suppresses p21 expression in HCT116 cells containing wild-type p53 induced by adriamycin. Biochem Biophys Res Commun. 1996 Apr 16;221(2):207-12. PubMed PMID: 8619835.

5: Take Y, Kumano M, Hamano Y, Fukatsu H, Teraoka H, Nishimura S, Okuyama A. OK-1035, a selective inhibitor of DNA-dependent protein kinase. Biochem Biophys Res Commun. 1995 Oct 4;215(1):41-7. PubMed PMID: 7575620.