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Technical Data
| Formula | C25H28N6O2 |
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| Molecular Weight | 444.53 | CAS No. | 945755-56-6 | |
| Solubility (25°C)* | In vitro | DMSO | 16 mg/mL (35.99 mM) | |
| Water | Insoluble | |||
| Ethanol | Insoluble | |||
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* <1 mg/ml means slightly soluble or insoluble. * 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. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.) |
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Preparing Stock Solutions
Biological Activity
| Description | XL019 is a potent and selective JAK2 inhibitor with IC50 of 2.2 nM, exhibiting >50-fold selectivity over JAK1, JAK3 and TYK2. Phase 1. | ||||||||||
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| In vitro | XL019 is a highly selective JAK2 inhibitor, binds to the active site of JAK2 displaying >50-fold selectivity against JAK1 and TYK2. XL019 reveals a desirable CYP (1A2, 2C9, 2D6, 3A4 ≥20 μM), hERG (16 μM), and P-glycoprotein inhibition (>20 μM) profile. [1] XL019 inhibits the activation of JAK2 as well as the mutated form JAK2V617F, which may result in the inhibition of the JAK-STAT signaling pathway and may induce apoptosis. XL019 showed more than 10-fold selective inhibition (IC50 = 64 nM) of STAT5 phosphorylation following EPO stimulation of erythroid cells compared with other cell systems. [2] | ||||||||||
| In vivo | XL019 significantly inhibits downstream markers pSTAT1 and pSTAT3 after administration 30, 100, and 300 mg/kg resulting in an ED50 of 42 mg/kg (pSTAT1) and 210 mg/kg (pSTAT3). XL019 has a superior pharmacodynamic profile and exhibits good oral absorption, and modest clearance and half life across species. XL019 inhibits of HEL.92.1.7 xenograft tumors growth in mice. It demonstrates 60% and 70% inhibition when dosed orally at 200 mg/kg and 300 mg/kg respectively twice a day for 14 days. Dosing at 300 mg/kg bid provided an 11.3-fold increase in apoptosis relative to vehicle control. [1] | ||||||||||
| Features | Orally bioavailable JAK2-selective inhibitor and has been tested in Phase I clinical trials for treatment of Myelofibrosis. |
Protocol (from reference)
| Animal Study:[1] |
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References
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Selleck's XL019 has been cited by 7 publications
| A panel of janus kinase inhibitors identified with anti-inflammatory effects protect mice from lethal influenza virus infection [ Antimicrob Agents Chemother, 2024, 68(4):e0135023.] | PubMed: 38470034 |
| Xl019, a novel JAK inhibitor, suppressed osteoclasts differentiation induced by RANKL through MAPK signaling pathway [ Biochem Pharmacol, 2023, 215:115704] | PubMed: 37536474 |
| Establishment and characterization of immortalized sweat gland myoepithelial cells [ Sci Rep, 2022, 12(1):7] | PubMed: 34997030 |
| JAK2 Inhibition by Fedratinib Reduces Osteoblast Differentiation and Mineralisation of Human Mesenchymal Stem Cells [ Molecules, 2021, 26(3)606] | PubMed: 33503825 |
| Revisiting Aldehyde Oxidase Mediated Metabolism in Drug-like Molecules: An Improved Computational Model [ J Med Chem, 2020, 31] | PubMed: 32191458 |
| A novel human colon signet-ring cell carcinoma organoid line: establishment, characterization and application [ Carcinogenesis, 2020, 41(7):993-1004] | PubMed: 31740922 |
| P-gp Inhibition by XL019, a JAK2 Inhibitor, Increases Apoptosis of Vincristine-treated Resistant KBV20C Cells with Increased p21 and pH2AX Expression. [ Anticancer Res, 2017, 37(12):6761-6769] | PubMed: 29187454 |
RETURN POLICY
Selleck Chemical’s Unconditional Return Policy ensures a smooth online shopping experience for our customers. If you are in any way unsatisfied with your purchase, you may return any item(s) within 7 days of receiving it. In the event of product quality issues, either protocol related or product related problems, you may return any item(s) within 365 days from the original purchase date. Please follow the instructions below when returning products.
SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.
NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.