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IACS-13909

Alias: IACS-13909; IACS 13909; IACS13909; BBP-398; BBP 398; BBP398;
Cat No.:V41104 Purity: ≥98%
IACS-13909 (IACS 13909; IACS13909) is a novel, potent and specific allosteric inhibitor of SHP2 that suppresses the signaling of RTK/MAPK pathway and overcomes multiple mechanisms underlying osimertinib resistance.
IACS-13909
IACS-13909 Chemical Structure CAS No.: 2160546-07-4
Product category: New2
This product is for research use only, not for human use. We do not sell to patients.
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Product Description
IACS-13909 (IACS 13909; IACS13909) is a novel, potent and specific allosteric inhibitor of SHP2 that suppresses the signaling of RTK/MAPK pathway and overcomes multiple mechanisms underlying osimertinib resistance.
IACS-13909 is a selective, potent, and orally active allosteric inhibitor of Src homology region 2 domain-containing phosphatase 2 (SHP2). It suppresses signaling of the RTK/MAPK pathway and overcomes multiple mechanisms underlying osimertinib resistance. It has antitumor activities in RTK-dependent cancers.
Biological Activity I Assay Protocols (From Reference)
Targets
SHP2 (Src homology region 2 domain-containing phosphatase 2). It binds to wild-type SHP2 and the constitutively activating SHP2E76K mutant with Kd values of 49 and 211 nM, respectively. It is more selective for SHP2 than other phosphatases including SHP1.
ln Vitro
IACS-13909 (10 nM-10 μM; 14 days) treatment can successfully stop wild-type SHP2 and KYSE-520 cells from proliferating [1]. The growth of wild-type SHP2 and KYSE-520 cells is efficiently inhibited by IACS-13909 (1-5 μM; 2 hours) treatment [1]. In a dose-dependent manner, IACS-13909 similarly and efficaciously (GI50 ~1 μM) reduces the proliferation of parental cells and NCI-H1975 CS cells. KYSE-520 cells' pERK and pMEK values [1].
IACS-13909 has an IC50 of 15.7 nM and a Kd of 32 nM for SHP2. It decreases the levels of phosphorylated ERK in KYSE-520 esophageal squamous cell carcinoma cells with an IC50 of 47 nM. It inhibits human-ether-a-go-go (hERG) channels with an IC50 of 180 nM in whole-cell patch-clamp assays.
ln Vivo
IACS-13909 (70 mg/kg; sidewall; daily; for 21 days tumor) administration revealed strong tumor growth suppression, with 100% tumor growth inhibition (TGI) reported after 21 days in the scaffold [1].
In an EGFR-overexpressing KYSE-520 mouse xenograft model, IACS-13909 decreases tumor volume without affecting body weight when administered at a dose of 70 mg/kg per day. This demonstrates its in vivo antitumor efficacy and a manageable safety profile.
Enzyme Assay
In vitro enzyme assays typically use recombinant SHP2 protein and a surrogate substrate such as DiFMUP (6,8-difluoro-4-methylumbelliferyl phosphate). The compound is incubated with the enzyme and substrate, and the fluorescence signal is measured to calculate IC50 values. Binding affinity (Kd) is determined using surface plasmon resonance (SPR) or isothermal titration calorimetry (ITC).
Cell Assay
Cell Proliferation Assay [1]
Cell Types: Wild-type SHP2 and KYSE-520 Cell
Tested Concentrations: 10 nM, 100 nM, 1. 0.041-3.3 μM) inhibits pERK in NCI-H1975 CS cells in a dose-coupled manner [1]. μM, 10 μM
Incubation Duration: 14 days
Experimental Results: Effectively inhibited cell proliferation.
Western Blot Analysis[1]
Cell Types: wild-type SHP2 and KYSE-520 Cell
Tested Concentrations: 1 μM, 5 μM
Incubation Duration: 2 hrs (hours)
Experimental Results: Effectively inhibited pERK and pMEK levels.
Cells (e.g., KYSE-520) are treated with various concentrations of IACS-13909 for a specified time. Cell viability is measured using CellTiter-Glo or MTT assays. Phosphorylated ERK levels are quantified by Western blotting or ELISA to assess pathway inhibition. In vivo studies are conducted in mouse xenograft models. IACS-13909 is formulated in a suitable vehicle and administered orally (e.g., 70 mg/kg per day). Tumor volume is measured using calipers, and body weight is monitored. Tumor tissues are collected for histopathological and biochemical analysis.
Animal Protocol
Animal/Disease Models: NSG mice (20-28 g) were injected with KYSE-520 cells [1].
Doses: 70 mg/kg.
Route of Administration: oral; daily; lasting for 21 days.
Experimental Results: Effectively inhibited tumor growth in mice.
IACS-13909 is orally active. It has a molecular weight of 377.27 and is sparingly soluble in DMSO and ethanol (1-10 mg/ml). Detailed pharmacokinetic parameters such as oral bioavailability, half-life, and clearance are available from specialized databases. It is recommended to store the compound at -20°C.
ADME/Pharmacokinetics
In vivo studies in mouse xenograft models report no significant effect on body weight at the efficacious dose of 70 mg/kg per day. However, IACS-13909 inhibits hERG channels (IC50 = 180 nM), suggesting a potential risk for cardiac toxicity that requires further evaluation.
Toxicity/Toxicokinetics
IACS-13909 is a research-grade SHP2 allosteric inhibitor. It suppresses MAPK pathway signaling in RTK-dependent cancers. It is not approved for clinical use and is available for research purposes only. Its molecular formula is C17H18Cl2N6 and its molecular weight is 377.27.
References

[1]. Allosteric SHP2 Inhibitor, IACS-13909, Overcomes EGFR-Dependent and EGFR-Independent Resistance Mechanisms toward Osimertinib. Cancer Res. 2020 Nov 1;80(21):4840-4853.

These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C17H18CL2N6
Molecular Weight
377.271020412445
Exact Mass
376.1
Elemental Analysis
C, 54.12; H, 4.81; Cl, 18.79; N, 22.28
CAS #
2160546-07-4
PubChem CID
132166923
Appearance
White to yellow solid powder
LogP
3
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
5
Rotatable Bond Count
2
Heavy Atom Count
25
Complexity
472
Defined Atom Stereocenter Count
0
SMILES
CC1(CCN(CC1)C2=NC3=NNC(=C3N=C2)C4=C(C(=CC=C4)Cl)Cl)N
InChi Key
AMADCPJVPLUGQO-UHFFFAOYSA-N
InChi Code
InChI=1S/C17H18Cl2N6/c1-17(20)5-7-25(8-6-17)12-9-21-15-14(23-24-16(15)22-12)10-3-2-4-11(18)13(10)19/h2-4,9H,5-8,20H2,1H3,(H,22,23,24)
Chemical Name
1-[3-(2,3-dichlorophenyl)-2H-pyrazolo[3,4-b]pyrazin-6-yl]-4-methylpiperidin-4-amine
Synonyms
IACS-13909; IACS 13909; IACS13909; BBP-398; BBP 398; BBP398;
HS Tariff Code
2934.99.9001
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO : ~10 mg/mL (~26.51 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 1 mg/mL (2.65 mM) (saturation unknown) in 10% DMSO + 40% PEG300 +5% Tween-80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 10.0 mg/mL clear DMSO stock solution to 400 μL of PEG300 and mix evenly; then add 50 μL of Tween-80 + to the above solution and mix evenly; then add 450 μL of normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.6506 mL 13.2531 mL 26.5062 mL
5 mM 0.5301 mL 2.6506 mL 5.3012 mL
10 mM 0.2651 mL 1.3253 mL 2.6506 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

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Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
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