MedKoo Cat#: 563090 | Name: IQ3
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Description:

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

IQ3 is a small molecule that functions primarily as a selective inhibitor of IQGAP1–ERK1/2 interactions, disrupting a key scaffold protein complex involved in RAS-MAPK signaling. By blocking this interaction, IQ3 effectively reduces ERK-mediated proliferation and survival signals, particularly in cancer cells. It has shown bioactivity in preclinical models of breast cancer, melanoma, and other tumors, demonstrating its potential as a targeted anticancer agent.

Chemical Structure

IQ3
IQ3
CAS#312538-03-7

Theoretical Analysis

MedKoo Cat#: 563090

Name: IQ3

CAS#: 312538-03-7

Chemical Formula: C20H11N3O3

Exact Mass: 341.0800

Molecular Weight: 341.33

Elemental Analysis: C, 70.38; H, 3.25; N, 12.31; O, 14.06

Price and Availability

Size Price Availability Quantity
10mg USD 450.00 2 Weeks
25mg USD 750.00 2 Weeks
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Related CAS #
No Data
Synonym
IQ3; IQ-3; IQ 3;
IUPAC/Chemical Name
11H-Indeno[1,2-b]quinoxalin-11-one O-(2-furanylcarbonyl)oxime
InChi Key
WBSWWONMTZEOGS-PTGBLXJZSA-N
InChi Code
InChI=1S/C20H11N3O3/c24-20(16-10-5-11-25-16)26-23-18-13-7-2-1-6-12(13)17-19(18)22-15-9-4-3-8-14(15)21-17/h1-11H/b23-18+
SMILES Code
O=C(O/N=C1C2=C(C3=NC4=CC=CC=C4N=C3\1)C=CC=C2)C5=CC=CO5
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
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
More Info
Product Data
Biological target:
IQ-3 is a specific inhibitor of the c-Jun N-terminal kinase (JNK) family, with preference for JNK3. IQ-3 exhibits Kd values of 0.24 μM, 0.29 μM and 0.066 μM for JNK1, JNK2 and JNK3, respectively.
In vitro activity:
TBD
In vivo activity:
TBD
Solvent mg/mL mM
Solubility
DMSO 15.0 43.95
Note: There can be variations in solubility for the same chemical from different vendors or different batches from the same vendor. The following factors can affect the solubility of the same chemical: solvent used for crystallization, residual solvent content, polymorphism, salt versus free form, degree of hydration, solvent temperature. Please use the solubility data as a reference only. Warming and sonication will facilitate dissolving. Still have questions? Please contact our Technical Support scientists.

Preparing Stock Solutions

The following data is based on the product molecular weight 341.33 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
Formulation protocol:
TBD
In vitro protocol:
TBD
In vivo protocol:
TBD
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Identification of calmodulin and MlcC as light chains for Dictyostelium myosin-I isozymes. Biochemistry. 2011 Aug 2;50(30):6579-88. doi: 10.1021/bi2007178. Epub 2011 Jul 8. PubMed PMID: 21671662. 7: Caride AJ, Bennett RD, Strehler EE. Kinetic analysis reveals differences in the binding mechanism of calmodulin and calmodulin-like protein to the IQ motifs of myosin-10. Biochemistry. 2010 Sep 21;49(37):8105-16. doi: 10.1021/bi100644q. PubMed PMID: 20731332; PubMed Central PMCID: PMC3818122. 8: Razsolov NA, Krapivnitskaia TA, Khashba BG. [Results of intelligence investigations in civil pilots with atherosclerotic changes in cerebral vessels]. Aviakosm Ekolog Med. 2009 Mar-Apr;43(2):50-2. Russian. PubMed PMID: 19621804. 9: Bennett RD, Caride AJ, Mauer AS, Strehler EE. Interaction with the IQ3 motif of myosin-10 is required for calmodulin-like protein-dependent filopodial extension. FEBS Lett. 2008 Jul 9;582(16):2377-81. doi: 10.1016/j.febslet.2008.05.051. Epub 2008 Jun 18. PubMed PMID: 18570893. 10: Manceva S, Lin T, Pham H, Lewis JH, Goldman YE, Ostap EM. Calcium regulation of calmodulin binding to and dissociation from the myo1c regulatory domain. Biochemistry. 2007 Oct 23;46(42):11718-26. Epub 2007 Oct 2. PubMed PMID: 17910470; PubMed Central PMCID: PMC2566900. 11: Terrak M, Rebowski G, Lu RC, Grabarek Z, Dominguez R. Structure of the light chain-binding domain of myosin V. Proc Natl Acad Sci U S A. 2005 Sep 6;102(36):12718-23. Epub 2005 Aug 24. PubMed PMID: 16120677; PubMed Central PMCID: PMC1200277. 12: Mortelmans K, Post M, Thijs V, Herroelen L, Budts W. The influence of percutaneous atrial septal defect closure on the occurrence of migraine. Eur Heart J. 2005 Aug;26(15):1533-7. Epub 2005 Mar 3. PubMed PMID: 15746154. 13: Patel-King RS, Gorbatyuk O, Takebe S, King SM. Flagellar radial spokes contain a Ca2+-stimulated nucleoside diphosphate kinase. Mol Biol Cell. 2004 Aug;15(8):3891-902. Epub 2004 Jun 11. 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