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HM43239 is an orally active and selective FLT3 inhibitor with IC 50 s of 1.1 nM, 1.8 nM and 1.0 nM for FLT3 WT, FLT3 internal tandem duplication (ITD) and FLT3 D835Y kinases, respectively. HM43239 directly inhibits the kinase activity of FLT3 as a reversible Type I inhibitor and effectively modulates downstream p-STAT5 and p-ERK. HM43239 also demonstrated inhibition of SYK, JAK1/2 and TAK1. HM43239 inhibits the proliferation and induces the apoptosis of leukemic cells [1] [2] [3].

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $45 | In Stock | In Stock | |
| 5 mg | $106 | In Stock | In Stock | |
| 10 mg | $169 | In Stock | In Stock | |
| 25 mg | $343 | In Stock | In Stock | |
| 50 mg | $515 | In Stock | In Stock | |
| 100 mg | $718 | In Stock | In Stock | |
| 200 mg | $950 | - | In Stock | |
| 1 mL x 10 mM (in DMSO) | $117 | In Stock | In Stock |
| Description | HM43239 is an orally active and selective FLT3 inhibitor with IC 50 s of 1.1 nM, 1.8 nM and 1.0 nM for FLT3 WT, FLT3 internal tandem duplication (ITD) and FLT3 D835Y kinases, respectively. HM43239 directly inhibits the kinase activity of FLT3 as a reversible Type I inhibitor and effectively modulates downstream p-STAT5 and p-ERK. HM43239 also demonstrated inhibition of SYK, JAK1/2 and TAK1. HM43239 inhibits the proliferation and induces the apoptosis of leukemic cells [1] [2] [3]. |
| Targets&IC50 | FLT3 (WT):1.1 nM, FLT3 (D835Y):1.0 nM, FLT3 (ITD):1.8 nM |
| In vitro | HM43239 potently inhibits the growth of acute myeloid leukemia cell lines harboring FLT3 ITD mutation like MV4-11 (IC 50 : 1.3 nM), MOLM-13 (IC 50 : 5.1 nM), and MOLM-14 (IC 50 : 2.9 nM). Besides, HM43239 inhibits KG1a cells (CD34+/CD38- cells) proliferation [1]. HM43239 induces the caspase 3/7-dependent apoptosis of leukemic stem cell (LSC) marker-expressing KG1a cells (CD34+/CD38- cells) [1]. HM43239 potently inhibits phosphorylation of SYK, STAT3, and STAT5 in KG1a cells [3]. |
| In vivo | HM43239 exhibits the excellent dose proportional antitumor activity in mouse models xenografted with both MV4-11 and MOLM-13 cell lines without any significant toxicity [1]. HM43239 prolongs survival in FLT3 ITD/TKD double mutated xenograft mouse models [3]. |
| Synonyms | Tuspetinib, 2569527-64-4 |
| Molecular Weight | 501.07 |
| Formula | C29H33ClN6 |
| Cas No. | 2294874-49-8 |
| Smiles | C[C@H]1CN(Cc2cc(Nc3ncc(Cl)c(n3)-c3c[nH]c4cc(C)ccc34)cc(c2)C2CC2)C[C@@H](C)N1 |
| Relative Density. | 1.258 g/cm3 (Predicted) |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 50 mg/mL (99.79 mM), Sonication is recommended. | ||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+90% Corn Oil: 2.5 mg/mL (4.99 mM), Sonication is recommeded. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | ||||||||||||||||||||||||||||||
Solution Preparation Table | |||||||||||||||||||||||||||||||
DMSO
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