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

MedKoo CAT#: 406200

CAS#: 22868-35-5

Description: G-573 is an allosteric inhibitor of MEK that is both potent and selective. The IC(50) value for pERK inhibition in HCT116 tumours by G-573 was estimated to be 0.406  µM. The IC(50) values for tumour growth inhibition in HCT116 and H2122 were estimated to be 3.43 and 2.56 µM, respectively. ED(50) estimates in HCT116 and H2122 mouse xenograft models were estimated to be ~4.6 and 1.9 mg/kg/day, respectively.

Chemical Structure

CAS# 22868-35-5

Theoretical Analysis

MedKoo Cat#: 406200
Name: G-573
CAS#: 22868-35-5
Chemical Formula: C13H9ClN2
Exact Mass: 228.05
Molecular Weight: 228.680
Elemental Analysis: C, 68.28; H, 3.97; Cl, 15.50; N, 12.25

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250mg USD 350 2 Weeks
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Synonym: G573; G-573; G 573.

IUPAC/Chemical Name: 2-(3-chlorophenyl)-1H-benzo[d]imidazole


InChi Code: InChI=1S/C13H9ClN2/c14-10-5-3-4-9(8-10)13-15-11-6-1-2-7-12(11)16-13/h1-8H,(H,15,16)


Appearance: Solid powder

Purity: >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).

Solubility: 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: 2934.99.9001

Product Data:

Preparing Stock Solutions

The following data is based on the product molecular weight 228.680000000000000000000000000000 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.

Recalculate based on batch purity %
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: Hatzivassiliou G, Haling JR, Chen H, Song K, Price S, Heald R, Hewitt JF, Zak  M, Peck A, Orr C, Merchant M, Hoeflich KP, Chan J, Luoh SM, Anderson DJ, Ludlam MJ, Wiesmann C, Ultsch M, Friedman LS, Malek S, Belvin M. Mechanism of MEK inhibition determines efficacy in mutant KRAS- versus BRAF-driven cancers. Nature. 2013 Sep 12;501(7466):232-6. doi: 10.1038/nature12441. Epub 2013 Aug 11.  Erratum in: Nature. 2013 Oct 10;502(7470):258. PubMed PMID: 23934108. 2: Choo EF, Belvin M, Chan J, Hoeflich K, Orr C, Robarge K, Yang X, Zak M, Boggs  J. Preclinical disposition and pharmacokinetics-pharmacodynamic modeling of biomarker response and tumour growth inhibition in xenograft mouse models of G-573, a MEK inhibitor. Xenobiotica. 2010 Nov;40(11):751-62. doi: 10.3109/00498254.2010.514365. PubMed PMID: 20836753.