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Purity: ≥98%
ARRY-380 analog, an analog of ARRY-380 (Irbinitinib, formerly known as ARRY-380 and ONT-380 or Tucatinib) which is a potent and selective small molecule inhibitor of HER2 with IC50 value of 8 nM, it is equally potent against truncated p95-HER2, and is 500-fold more selective for HER2 versus EGFR. Irbinitinib acts by blocking the proliferation and phosphorylation of HER2 and its downstream effector, Akt. By contrast, in the EGFR overexpressing cell lines, it weakly inhibits phosphorylation and proliferation, demonstrating that Irbinitinib may have potential to block HER2 signaling without causing the toxicities of EGFR inhibition. Therefore, it has the potential to be used as an anticancer agent.
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| References |
Clin Cancer Res.2017 Jul 15;23(14):3529-3536.
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| Molecular Formula |
C29H27N7O4S
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| Molecular Weight |
569.63
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| CAS # |
937265-83-3
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| Related CAS # |
937263-43-9;937265-83-3 (ARRY-380 analog);
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| SMILES |
O=S(CCNCC1=CC=C(C2=CC3=C(NC4=CC=C(OC5=CC6=NC=NN6C=C5)C(C)=C4)N=CN=C3C=C2)O1)(C)=O
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
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| Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.08 mg/mL (3.65 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 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 20.8 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. Solubility in Formulation 2: 2.08 mg/mL (3.65 mM) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), suspension solution; with ultrasonication. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 20.8 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline 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 | 1.7555 mL | 8.7776 mL | 17.5553 mL | |
| 5 mM | 0.3511 mL | 1.7555 mL | 3.5111 mL | |
| 10 mM | 0.1756 mL | 0.8778 mL | 1.7555 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.
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.
 Geometric mean (SD) plasma ONT-380 concentrations on cycle 1 day 15 (Semi-log Scale).Clin Cancer Res.2017 Jul 15;23(14):3529-3536. |
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 Waterfall plot of target lesions in HER2+MBC patients with measurable disease evaluable for response at ONT-380 doses ≥600 mg BID (N= 20).Clin Cancer Res.2017 Jul 15;23(14):3529-3536. |
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