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SSR128129E FGFR inhibitor

Cat.No.S7167

SSR128129E is an orally-active and allosteric FGFR1 inhibitor with IC50 of 1.9 μM, while not affecting other related RTKs.

Chemical Structure

Molecular Weight: 346.31

Jump to Mechanism of Action Solubility Chemical Information, Storage & Stability Specificity

Quality Control

Batch: S716701 DMSO]69 mg/mL]false]Water]1 mg/mL]false]Ethanol]Insoluble]false Purity: 99.93%

99.93

Related Targets	EGFR VEGFR JAK PDGFR Src FLT3 HER2 Bcr-Abl HIF BTK ALK Syk FAK VDA
Related Products	Fexagratinib (AZD4547) PD173074 BLU9931 LY2874455 Zoligratinib (Debio-1347) Futibatinib (TAS-120) PD-166866 H3B-6527 Fisogatinib (BLU-554) Derazantinib FIIN-2 Ferulic Acid ASP5878 Roblitinib (FGF401) Alofanib (RPT835) NSC12 PRN1371

Chemical Information, Storage & Stability

Molecular Weight	346.31	Formula	C₁₈H₁₅N₂O₄.Na	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	848318-25-2	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	SSR			Smiles	CC1=C(N2C=CC=CC2=C1OC)C(=O)C3=CC(=C(C=C3)N)C(=O)[O-].[Na+]

Solubility

In vitro
Batch:

DMSO : 69 mg/mL ( (199.24 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : 1 mg/mL

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
=	×	×

Dilution Calculator Molecular Weight Calculator

In vivo Batch:
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	3.450mg/ml (9.96mM)	Taking the 1 mL working solution as an example, add 50 μL of 69 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.430mg/ml (1.24mM)	Taking the 1 mL working solution as an example, add 50 μL of 8.6 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Mechanism of Action

Targets/IC₅₀/Ki	FGFR1 ^[1] 1.9 μM
In vitro	SSR128129E exhibits more effective activity in cell assay due to its allosteric mechanism. This compound dose-dependently inhibits FGF2-induced EC proliferation and migration with IC50 of 31 nM and 15.2 nM, respectively. As a multi-FGFR inhibitor, it inhibits responses mediated by FGFR1-4 and thus results in the blockage of proliferation and/or migration in various cell lines including mPanc02, HEK-hFGFR2WT, PAE-hFGFR1, hB9-myeloma and HUVEC. ^[1]
Kinase Assay	Scintillation Proximity Assay, ¹²⁵I-FGF-2 Binding
Kinase Assay	SPA protein A beads are supplied as a suspension in PBS at 20 mg/mL, then diluted with binding buffer (KCl, 400 mg/L; MgSO₄ 200 mg/L; NaCl 6.4 g/L; NaHCO₃ 3.7 g/L; NaH₂PO₄ 0.141 mg/mL; bis Tris Propane 11.292 g/L; Glucose 4.5 g/L; Gelatin 0.1 %; pH 7.0) at 10 mg/mL. ¹²⁵I-FGF-2 radioligand and FGFR-1IIIcß - Fc Chimera are diluted into binding buffer. Binding was performed on 96-well plates coated with 0.1 % gelatin. Total assay volume is 0.1 mL. Binding of ¹²⁵I-FGF-2 is determined by incubation of SPA beads coated with protein A (0.5 mg/assay) with FGFR-1IIIcß - Fc chimera soluble receptor (5 ng/assay), FGF-2 (20 ng/assay) is used for non-specific binding determinations.
In vivo	In Arthritis mice, SSR128129E (30 mg/kg, p.o.) inhibits angiogenesis, inflammation, and bone resorption, and reduces the severity of clinical symptoms. In mice bearing various tumor models, this compound (30 mg/kg, p.o.) inhibits both the growth of primary tumors and metastasis. In addition, it inhibits growth of anti-VEGFR2-refractory and -sensitive tumor models, and enhances the antitumor activity of anti-VEGFR2. ^[1] This chemical also inhibits arteriosclerosis in a mouse vein graft model and atherosclerosis in apolipoprotein E-deficient mice. ^[2]
References	https://pubmed.ncbi.nlm.nih.gov/23597562/ https://pubmed.ncbi.nlm.nih.gov/24224032/

Applications

Methods	Biomarkers	Images	PMID
Western blot	pFGFR1 / FGFR1 / pERK / ERK / NANOG		28092370
Growth inhibition assay	Cell viability		28092370

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06194331	Not yet recruiting	Suicidal Ideation\|Suicidal and Self-injurious Behavior\|Depression	University of Pittsburgh\|Pediatric Research in Office Settings\|National Institute of Mental Health (NIMH)	December 1 2024	Not Applicable
NCT06175767	Not yet recruiting	Parkinson''s Disease	Mthera Pharma Co. Ltd.	July 2024	Phase 2
NCT03575000	Not yet recruiting	Schizophrenia\|PreDiabetes	VA Pittsburgh Healthcare System	July 1 2024	Phase 4

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