Molecular Weight(MW): 440.5
Ibrutinib (PCI-32765) is a potent and highly selective Brutons tyrosine kinase (Btk) inhibitor with IC50 of 0.5 nM in cell-free assays, modestly potent to Bmx, CSK, FGR, BRK, HCK, less potent to EGFR, Yes, ErbB2, JAK3, etc.
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Purity & Quality Control
Choose Selective BTK Inhibitors
|Description||Ibrutinib (PCI-32765) is a potent and highly selective Brutons tyrosine kinase (Btk) inhibitor with IC50 of 0.5 nM in cell-free assays, modestly potent to Bmx, CSK, FGR, BRK, HCK, less potent to EGFR, Yes, ErbB2, JAK3, etc.|
Ibrutinib shows the potent and irreversible inhibitory effect and selectivity for Btk enzymatic activity. In BCR pathway-activated DOHH2 cell line, Ibrutinib inhibits autophosphorylation of Btk, phosphorylation of Btk's physiological substrate PLCγ, and phosphorylation of further downstream kinase, ERK with IC50 of 11 nM, 29 nM and 13 nM, respectively.  Ibrutinib exhibits a significant dose-dependent and time-dependent induction of cytotoxicity in chronic lymphocytic leukemia (CLL) cells. In addition, Ibrutinib induces cell death depending on caspase pathway activation and antagonizes the ability of CLL cells to proliferate after TLR signaling.  A recent study shows that Ibrutinib inhibits BCR-activated primary B cell proliferation with IC50 of 8 nM and results in inhibition of TNFα, IL-1β and IL-6 production in primary monocytes with IC50 of 2.6 nM, 0.5 nM and 3.9 nM, respectively. 
|In vivo||In a collagen-induced arthritis model, Ibrutinib significantly reduces clinical arthritis scores reflecting paw swelling and joint inflammation by inhibiting B-cell activation. In a MRL-Fas(lpr) lupus model, Ibrutinib reduces renal disease and autoantibody production.  In an adoptive transfer TCL1 mouse model of CLL, Ibrutinib (25 mg/kg/day) causes a transient early lymphocytosis, and delays CLL disease progression. |
Kinase Assays :In vitro kinase IC50 values are measured using 33P filtration binding assay after 1 hour incubation of kinase, 33P-ATP, Ibrutinib, and substrate [0.2 mg/mL poly(EY)(4:1]. Assays are performed at Reaction Biology.
|In vitro||DMSO||88 mg/mL (199.77 mM)|
|Ethanol||45 mg/mL (102.15 mM)|
|In vivo||Add solvents to the product individually and in order(Data is from Selleck tests instead of citations):
5% DMSO+30% PEG 300+5% Tween 80+ddH2O
For best results, use promptly after mixing.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
Calculate the mass, volume or concentration required for a solution. The Selleck molarity calculator is based on the following equation:
Mass (mg) = Concentration (mM) × Volume (mL) × Molecular Weight (g/mol)
*When preparing stock solutions, please always use the batch-specific molecular weight of the product found on the via label and MSDS / COA (available on product pages).
Calculate the dilution required to prepare a stock solution. The Selleck dilution calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
This equation is commonly abbreviated as: C1V1 = C2V2 ( Input Output )
* When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and MSDS / COA (available online).
Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
Instructions to calculate molar mass (molecular weight) of a chemical compound:
To calculate molar mass of a chemical compound, please enter its chemical formula and click 'Calculate'.
Definitions of molecular mass, molecular weight, molar mass and molar weight:
Molecular mass (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.
Clinical Trial Information
|NCT Number||Recruitment||interventions||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT04042376||Not yet recruiting||Drug: Ibrutinib||Waldenstrom Macroglobulinemia||Janssen Research & Development LLC||November 15 2019||Phase 4|
|NCT04115059||Not yet recruiting||Drug: Dasatinib||Waldenstrom Macroglobulinemia|DASATINIB||Jorge J. Castillo MD|Bristol-Myers Squibb|Dana-Farber Cancer Institute||November 2019||Phase 1|
|NCT03679624||Recruiting||Drug: Ibrutinib|Drug: Daratumumab||Waldenstrom Macroglobulinemia|Waldenstrom''s Disease|Waldenström; Hypergammaglobulinemia|Waldenstrom''s Macroglobulinemia Recurrent|Waldenstrom''s Macroglobulinemia of Lymph Nodes|Waldenstrom''s Macroglobulinaemia Without Mention of Remission|Waldenstrom''s Macroglobulinemia Refractory||Weill Medical College of Cornell University|Janssen Scientific Affairs LLC|Mayo Clinic||October 2019||Phase 2|
|NCT04062448||Not yet recruiting||Drug: Ibrutinib|Drug: Rituximab||Waldenstrom Macroglobulinemia||Janssen Pharmaceutical K.K.||September 11 2019||Phase 2|
|NCT03943342||Not yet recruiting||Drug: Ibrutinib|Drug: Venetoclax||Chronic Lymphocytic Leukemia|Loss of Chromosome 17p||Kerry Rogers|National Cancer Institute (NCI)|Janssen Research & Development LLC|Ohio State University Comprehensive Cancer Center||September 1 2019||Phase 2|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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Frequently Asked Questions
How to reconstitute the compound S2680 for in vivo studies?
For in vivo study, we suggest to use 5% DMSO+30% PEG 300+5% Tween 80+ddH2O up to 10mg/ml.