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Limantrafin (CB-103) Notch inhibitor

Name: Limantrafin (CB-103)
Brand: Selleck Chemicals
SKU: S9719
Availability: InStock
Rating: 5 (4 reviews)

Cat.No.S9719

An orally active inhibitor of the Notch transcription activation complex, Limantrafin (CB-103) produces Notch loss-of-function phenotypes in flies and mice and inhibits the growth of human breast cancer and leukemia xenografts.

Chemical Structure

Molecular Weight: 242.32

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Quality Control

Batch: S971901 DMSO]48 mg/mL]false]Ethanol]48 mg/mL]false]Water]Insoluble]false Purity: 99.77%

Cited in Nature Medicine for its top-tier quality
COA
NMR
SDS/MSDS
Datasheet

99.77

Related Targets	Adrenergic Receptor AChR 5-HT Receptor COX Calcium Channel Histamine Receptor Dopamine Receptor GABA Receptor TRP Channel Cholinesterase (ChE)
Other Notch Inhibitors	Crenigacestat (LY3039478) FLI-06 IMR-1 RIN1 (RBPJ Inhibitor-1) Yhhu-3792 hydrochloride NVS-ZP7-4 Jagged-1 (188-204) (TFA) IMR-1A

Solubility

In vitro
Batch:

DMSO : 48 mg/mL (198.08 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : 48 mg/mL

Water : 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.
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.	2.400mg/ml (9.90mM)	Taking the 1 mL working solution as an example, add 50 μL of 48 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.	2.400mg/ml (9.90mM)	Taking the 1 mL working solution as an example, add 50 μL of 48 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.

Chemical Information, Storage & Stability

Molecular Weight	242.32	Formula	C₁₅H₁₈N₂O	Storage (From the date of receipt)	3 years -20°C powder
CAS No.	218457-67-1	--		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	N/A			SMILES	CC(C)(C)C1=CC=C(OC2=CC=C(N)C=N2)C=C1

Read more about storage stability stock solution CAS number SMILES

Mechanism of Action

Targets/IC₅₀/Ki	Notch
In vitro	Limantrafin (CB-103) inhibits growth of Notch-addicted human T cell acute lymphoblastic leukemia cell lines through modulation of the Notch transcription complex.
In vivo	Limantrafin (CB-103) functions in vivo to recapitulate genetic notch loss-of-function phenotypes without causing gut toxicity, and it blocks tumor growth of GSI-resistant cancers.
References	[1] https://pubmed.ncbi.nlm.nih.gov/32601208/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2026-06-29)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05774899	RECRUITING	Adenoid Cystic Carcinoma; Metastatic Adenoid Cystic Carcinoma; Recurrent Adenoid Cystic Carcinoma	Glenn J. Hanna	2023-06-01	PHASE1; PHASE2
NCT05464836	TERMINATED	Leukemia, Lymphoblastic; Leukemia	M.D. Anderson Cancer Center	2023-04-06	PHASE2
NCT05464836	Recruiting	Leukemia Lymphoblastic\|Leukemia	M.D. Anderson Cancer Center	2023-04-06	Phase 2
NCT03422679	TERMINATED	Breast Cancer; Colorectal Cancer; Adenoid Cystic Carcinoma; Non-hodgkin Lymphoma; Glomus Tumor, Malignant; Hepatocellular Carcinoma; Osteosarcoma; T-ALL	Cellestia Biotech AG	2017-12-05	PHASE1; PHASE2
NCT04714619	TERMINATED	Advanced Breast Cancer	MedSIR	2021-05-06	PHASE2
NCT04714619	Terminated	Advanced Breast Cancer	MedSIR\|Cellestia Biotech AG	2021-05-06	Phase 2

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