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

MedKoo CAT#: 205482

CAS#: 1224887-10-8

Description: GSK2256098, also known as GTPL7939, is a focal adhesion kinase-1 (FAK) inhibitor with potential antiangiogenic and antineoplastic activities. FAK inhibitor GSK2256098 inhibits FAK, which may prevent the integrin-mediated activation of several downstream signal transduction pathways, including ERK, JNK/MAPK and PI3K/Akt, thereby inhibiting tumor cell migration, proliferation and survival, and tumor angiogenesis. The tyrosine kinase FAK is normally activated by binding to integrins in the extracellular matrix (ECM) but may be upregulated and constitutively activated in various tumor cell types.

Chemical Structure

CAS# 1224887-10-8

Theoretical Analysis

MedKoo Cat#: 205482
Name: GSK-2256098
CAS#: 1224887-10-8
Chemical Formula: C20H23ClN6O2
Exact Mass: 414.1571
Molecular Weight: 414.894
Elemental Analysis: C, 57.90; H, 5.59; Cl, 8.54; N, 20.26; O, 7.71

Size Price Shipping out time Quantity
10mg USD 90 Same day
25mg USD 150 Same day
50mg USD 250 Same day
100mg USD 450 Same day
200mg USD 850 Same day
500mg USD 1850 Same day
1g USD 2950 Same day
2g USD 4650 2 weeks
5g USD 6250 2 weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-08. Prices are subject to change without notice.

GSK2256098, purity > 98%, is in stock. The same day shipping out after order is received.

Synonym: GSK2256098; GSK 2256098; GSK-2256098; GTPL7939; GTPL-7939; GTP L7939.

IUPAC/Chemical Name: 2-((5-chloro-2-((1-isopropyl-3-methyl-1H-pyrazol-5-yl)amino)pyridin-4-yl)amino)-N-methoxybenzamide


InChi Code: InChI=1S/C20H23ClN6O2/c1-12(2)27-19(9-13(3)25-27)24-18-10-17(15(21)11-22-18)23-16-8-6-5-7-14(16)20(28)26-29-4/h5-12H,1-4H3,(H,26,28)(H2,22,23,24)


White to off-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:

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
Soluble in DMSO, not in water 100.0

Preparing Stock Solutions

The following data is based on the product molecular weight 414.894 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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 1: Thanapprapasr D, Previs RA, Hu W, Ivan C, Armaiz-Pena GN, Dorniak PL, Hansen JM, Rupaimoole R, Huang J, Dalton HJ, Ali-Fehmi R, Coleman RL, Sood AK. PTEN Expression as a Predictor of Response to Focal Adhesion Kinase Inhibition in Uterine Cancer. Mol Cancer Ther. 2015 Jun;14(6):1466-75. doi: 10.1158/1535-7163.MCT-14-1077. Epub 2015 Apr 1. PubMed PMID: 25833835; PubMed Central PMCID: PMC4458384.

2: Zhang J, He DH, Zajac-Kaye M, Hochwald SN. A small molecule FAK kinase inhibitor, GSK2256098, inhibits growth and survival of pancreatic ductal adenocarcinoma cells. Cell Cycle. 2014;13(19):3143-9. doi:
10.4161/15384101.2014.949550. PubMed PMID: 25486573; PubMed Central PMCID: PMC4615113.

3: Schultze A, Fiedler W. Clinical importance and potential use of small molecule inhibitors of focal adhesion kinase. Anticancer Agents Med Chem. 2011 Sep;11(7):593-9. Review. PubMed PMID: 21787277.

Additional Information

Interim Clinical trial results with GSK2256098 : 57 pts with advanced solid tumors have been treated at escalating doses ranging from 80 mg to 1500 mg BID: median age=58.8 (range 21-84). The most common tumor types include: mesothelioma (23), ovary (7), colon (3), kidney (3), and pancreas (3). MTD was determined to be 1000 mg BID. DLTs were Gr 2 proteinuria (1000 mg), Gr 2 nausea, vomiting, fatigue (1250 mg) and Gr 3 asthenia (1500 mg). Most frequent toxicities were nausea (32 pts, 56%), diarrhea (31 pts, 54%), vomiting (25 pts, 44%), decreased appetite (18 pts 32%) and asthenia (11 pts, 19%). The majority of toxicities were Gr 1-2; Gr 3 drug-related events included hypertriglyceridemia (n=2), hyperlipasemia (2), asthenia (1), increased amylase (1), and loss of consciousness (1). Few dose reductions and interruptions have occurred. Minor responses/stable disease (SD) were observed in pts with mesothelioma (-12%, 27 wks), melanoma (-26%, 54 wks), and naso/pharyngeal cancer (-31% target lesion, 30 wks) and SD in renal cell (48+ wks). In preliminary analysis of single-dose PK, exposure generally increased in a dose-proportional manner, and the geometric mean tÅ“ was 4.2 h. Accumulation was not observed with repeat dosing. Conclusions: GSK2256098 is well tolerated with evidence of clinical activity. PK supports BID dosing.  (source: J Clin Oncol 30, 2012 (suppl; abstr 3000)