Name: ON123300
Brand: Selleck Chemicals
SKU: S8161
Availability: InStock
Rating: 5 (4 reviews)

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Quality Control

Batch: Purity: 99.96%

99.96

Related Targets	HSP PD-1/PD-L1 ROCK Wee1 DNA/RNA Synthesis Microtubule Associated Ras KRas Aurora Kinase Casein Kinase
Other CDK Inhibitors	AS2863619 Ro-3306 SEL120 (SEL120-34A) hydrochloride INX-315 Tagtociclib (PF-07104091) PF-07220060 (CDK4/6-IN-6) AZD4573 Enitociclib (BAY 1251152) Samuraciclib (ICEC0942) hydrochloride Dinaciclib (SCH 727965)

Solubility

In vitro
Batch:

DMSO : 29 mg/mL (67.51 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection 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.
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.	0.550mg/ml (1.28mM)	Taking the 1 mL working solution as an example, add 50 μL of 11 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.	0.250mg/ml (0.58mM)	Taking the 1 mL working solution as an example, add 50 μL of 5 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.
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.

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.

Chemical Information, Storage & Stability

Molecular Weight	429.52	Formula	C₂₄H₂₇N₇O	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	1357470-29-1	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			Smiles	CN1CCN(CC1)C2=CC=C(C=C2)NC3=NC=C4C=C(C(=O)N(C4=N3)C5CCCC5)C#N

Mechanism of Action

Targets/IC₅₀/Ki	CDK4/CyclinD1 (Cell-free assay) 3.87 nM ARK5 (Cell-free assay) 4.95 nM RET (Cell-free assay) 9.2 nM CDK6/CyclinD1 (Cell-free assay) 9.82 nM Fyn (Cell-free assay) 11 nM PDGFRβ (Cell-free assay) 26 nM FGFR1 (Cell-free assay) 26 nM PI3Kδ (Cell-free assay) 144 nM FGFR1 (Cell-free assay) 260 nM
In vitro	ON123300 inhibits U87 glioma cell proliferation with an IC50 3.4±0.1 μmol/L and reduces phosphorylation of Akt, yet it also unexpectedly induces Erk activation, both in a dose- and time-dependent manner that subsequently is attributed to relieving Akt mediated C-Raf S259 inactivation and activating a p70S6K-initiated PI3K-negative feedback loop. This compound also inhibits CDK4/6 and PI3K-δ and exhibits potent activity against mantle cell lymphomas (MCLs). It is a potent inhibitor of CDK4, with an IC50 of 3.8 nM, with little inhibitory activity against CDKs 1,2,5 and 8. MCL cell lines treated with this chemical accumulate in the G1 phase at lower concentrations (0.1-1.0μM), at higher concentrations of the compound, a large proportion of the cells progress through the S and G2/M phases of the cell cycle and eventually accumulate in the sub-G1 phase, suggesting an induction of apoptosis. It also inhibits the phosphorylation of pRb and p130 in a dose-dependent manner. This treatment results in inhibition of FOXO1 phosphorylation, a target of mTOR.
In vivo	In a preclinical brain tumor model (U87MG), ON123300 shows high brain and brain tumor accumulation. Consistent with the in vitro studies, single agent this compound causes a dose-dependent suppression of phosphorylation of Akt as well as activation of Erk in brain tumors. It is highly bound (99.4%) to plasma proteins in mice and rapidly penetrates into brain. It has proficient BBB penetration and accumulates in normal brain. The pharmacokinetic profiles of plasma this chemical concentration are multiexponential and overall declines fairly rapidly with terminal elimination half-lives of 1.5 hours. Mouse xenograft assays show a strong inhibition of MCL tumor growth in this compound-treated animals. Safety studies in mice suggest that it is orally bio-available and is minimally toxic when administered orally or intraperitoneally.
References	[1] https://pubmed.ncbi.nlm.nih.gov/24568969/ [2] https://pubmed.ncbi.nlm.nih.gov/23180160/ [3] https://pubmed.ncbi.nlm.nih.gov/26174628/

Clinical Trial Information

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

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT06351644	Not yet recruiting	Relapsed and/or Refractory Multiple Myeloma	Adriana Rossi\|Icahn School of Medicine at Mount Sinai	June 3 2024	Phase 1\|Phase 2
NCT04739293	Recruiting	Solid Tumors Adult	Traws Pharma Inc.	May 13 2021	Phase 1

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ON123300 CDK inhibitor

Chemical Structure

Molecular Weight: 429.52