L-778123 free base

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

MedKoo CAT#: 596698

CAS#: 183499-57-2 (free base)

Description: L-778123 is an inhibitor of FPTase and GGPTase-I, which was developed in part because it can completely inhibit Ki-Ras prenylation. The combination ofL-778,123 and radiotherapy at dose level 1 showed acceptable toxicity in patients with locally advanced pancreatic cancer. Radiosensitization of a patient-derived pancreatic cancer cell line was observed.

Price and Availability




L-778123 free base 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#: 596698
Name: L-778123 free base
CAS#: 183499-57-2 (free base)
Chemical Formula: C22H20ClN5O
Exact Mass: 405.1356
Molecular Weight: 405.88
Elemental Analysis: C, 65.10; H, 4.97; Cl, 8.73; N, 17.25; O, 3.94

Related CAS #: 253863-00-2 (HCl)   183499-57-2 (free base)   183499-56-1 (2HCl)  

Synonym: L-778123 free base; L-778123; L 778123; L778123; L-778,123; L 778,123; L778,123;

IUPAC/Chemical Name: 4-((5-((4-(3-chlorophenyl)-3-oxopiperazin-1-yl)methyl)-1H-imidazol-1-yl)methyl)benzonitrile


InChi Code: InChI=1S/C22H20ClN5O/c23-19-2-1-3-20(10-19)28-9-8-26(15-22(28)29)14-21-12-25-16-27(21)13-18-6-4-17(11-24)5-7-18/h1-7,10,12,16H,8-9,13-15H2


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

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).

Harmonized System Code:


1: Ghasemi S, Davaran S, Sharifi S, Asgari D, Abdollahi A, Shahbazi Mojarrad J. Comparison of Cytotoxic Activity of L778123 as a Farnesyltranferase Inhibitor and Doxorubicin against A549 and HT-29 Cell Lines. Adv Pharm Bull. 2013;3(1):73-7. doi: 10.5681/apb.2013.012. Epub 2013 Feb 7. PubMed PMID: 24312815; PubMed Central PMCID: PMC3846042.

2: Bayés M, Rabasseda X, Prous JR. Gateways to clinical trials. Methods Find Exp Clin Pharmacol. 2003 Jul-Aug;25(6):483-506. PubMed PMID: 12949633.

3: Bayés M, Rabasseda X, Prous JR. Gateways to clinical trials. Methods Find Exp Clin Pharmacol. 2002 Oct;24(8):525-51. PubMed PMID: 12500432.