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Elenestinib (BLU-263)

Cat No.:V69295 Purity: ≥98%
Elenestinib (BLU-263) is a potent orally bioactive tyrosine kinase inhibitor.
Elenestinib (BLU-263)
Elenestinib (BLU-263) Chemical Structure CAS No.: 2505078-08-8
Product category: c-Kit
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
1mg
5mg
Other Sizes

Other Forms of Elenestinib (BLU-263):

  • Elenestinib phosphate (BLU-263 phosphate)
Official Supplier of:
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Top Publications Citing lnvivochem Products
Product Description
Elenestinib (BLU-263) is a potent orally bioactive tyrosine kinase inhibitor. Elenestinib may be used for studying systemic mastocytosis (SM). Elenestinib inhibits KIT D816V with IC50 of 0.2 nM.
Biological Activity I Assay Protocols (From Reference)
Targets
IC50: 0.2 nM (KIT D816V)[2]
References

[1]. Safety and pharmacokinetics of BLU-263, a next-generation KIT inhibitor, in healthy volunteers[C]//Cancer Res (AACR Annual Meeting Abstracts). 2021, 122.

[2]. A Phase 2/3 Study of BLU-263 in Patients with Indolent Systemic Mastocytosis or Monoclonal Mast Cell Activation Syndrome. Allergy and Clinical Immunology. 2022, 149 (2).

Additional Infomation
Elenestinib is a selective KIT inhibitor.
Elenestinib is an orally bioavailable protein tyrosine kinase inhibitor of the mutated form of the tumor-associated antigen (TAA) mast/stem cell factor receptor c-Kit (SCFR), D816V, with potential antineoplastic activity. Upon oral administration, elenestinib binds to and inhibits the specific c-Kit mutant D816V. This may result in an inhibition of cell proliferation in mast cells that overexpress this c-Kit mutation. D816V, a mutation in which the amino acid asparagine aspartic acid at position 816 in the mast/stem cell growth factor receptor Kit protein is replaced by valine, may drive mastocytosis and other mast cell disorders.
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C27H29FN10O
Molecular Weight
528.583966970444
Exact Mass
528.25
CAS #
2505078-08-8
Related CAS #
Elenestinib phosphate;2832013-93-9
PubChem CID
155190269
Appearance
White to off-white solid powder
LogP
1.1
Hydrogen Bond Donor Count
2
Hydrogen Bond Acceptor Count
10
Rotatable Bond Count
7
Heavy Atom Count
39
Complexity
789
Defined Atom Stereocenter Count
1
SMILES
FC1C=CC(=CC=1)[C@@](C)(C1C=NC(=NC=1)N1CCN(C2C3=CC(C4C=NN(CCO)C=4)=CN3N=CN=2)CC1)N
InChi Key
IPMARPMXSFFZFG-MHZLTWQESA-N
InChi Code
InChI=1S/C27H29FN10O/c1-27(29,21-2-4-23(28)5-3-21)22-14-30-26(31-15-22)36-8-6-35(7-9-36)25-24-12-19(17-38(24)34-18-32-25)20-13-33-37(16-20)10-11-39/h2-5,12-18,39H,6-11,29H2,1H3/t27-/m0/s1
Chemical Name
2-[4-[4-[4-[5-[(1S)-1-amino-1-(4-fluorophenyl)ethyl]pyrimidin-2-yl]piperazin-1-yl]pyrrolo[2,1-f][1,2,4]triazin-6-yl]pyrazol-1-yl]ethanol
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: 125 mg/mL (236.48 mM)
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 6.25 mg/mL (11.82 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 62.5 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 + to the above solution and mix evenly; then add 450 μL 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 1.8919 mL 9.4593 mL 18.9186 mL
5 mM 0.3784 mL 1.8919 mL 3.7837 mL
10 mM 0.1892 mL 0.9459 mL 1.8919 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.

Calculator

Molarity Calculator allows you to calculate the mass, volume, and/or concentration required for a solution, as detailed below:

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  • Calculate the Concentration of a solution resulting from a known mass of compound in a specific volume
An example of molarity calculation using the molarity calculator is shown below:
What is the mass of compound required to make a 10 mM stock solution in 5 ml of DMSO given that the molecular weight of the compound is 350.26 g/mol?
  • Enter 350.26 in the Molecular Weight (MW) box
  • Enter 10 in the Concentration box and choose the correct unit (mM)
  • Enter 5 in the Volume box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 17.513 mg appears in the Mass box. In a similar way, you may calculate the volume and concentration.

Dilution Calculator allows you to calculate how to dilute a stock solution of known concentrations. For example, you may Enter C1, C2 & V2 to calculate V1, as detailed below:

What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
  • Enter 10 into the Concentration (Start) box and choose the correct unit (mM)
  • Enter 25 into the Concentration (End) box and select the correct unit (mM)
  • Enter 25 into the Volume (End) box and choose the correct unit (mL)
  • Click the “Calculate” button
  • The answer of 62.5 μL (0.1 ml) appears in the Volume (Start) box
g/mol

Molecular Weight Calculator allows you to calculate the molar mass and elemental composition of a compound, as detailed below:

Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
Instructions to calculate molar mass (molecular weight) of a chemical compound:
  • To calculate molar mass of a chemical compound, please enter the chemical/molecular formula and click the “Calculate’ button.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
  • Molecular mass (or molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
  • Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
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Reconstitution Calculator allows you to calculate the volume of solvent required to reconstitute your vial.

  • Enter the mass of the reagent and the desired reconstitution concentration as well as the correct units
  • Click the “Calculate” button
  • The answer appears in the Volume (to add to vial) box
In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

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.
             (2) Be sure to add the solvent(s) in order.

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