Torin 2
Based on 21 publication(s) in Google Scholar
Torin 2 is an mTOR inhibitor with EC50 of 0.25 nM for inhibiting cellular mTOR activity, and exhibits 800-fold selectivity over PI3K (EC50: 200 nM). Torin 2 also inhibits DNA-PK with an IC50 of 0.5 nM in the cell free assay. Torin 2 can suppress both mTORC1 and mTORC2.
Para uso exclusivo en investigación. No vendemos a pacientes.
- Pureza: 99.65%
- No. CAS: 1223001-51-1
- Fòrmula: C24H15F3N4O
- Peso molecular:432.40
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Almacenamiento:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 1 year , -20°C, 6 months
Publications Citing Use of MedChemExpress (MCE) Torin 2
More- Nat Commun. 2024 Mar 18;15(1):2441. [Abstract]
- J Clin Invest. 2025 Sep 30:e195267. [Abstract]
- Cell Death Dis. 2022 Jul 15;13(7):615. [Abstract]
- Cell Chem Biol. 2020 Nov 19;27(11):1359-1370.e8. [Abstract]
- Cell Syst. 2020 Jan 22;10(1):66-81.e11. [Abstract]
- Genes Dev. 2021 Oct 1;35(19-20):1327-1332. [Abstract]
- Sci Signal. 2025 Sep 16;18(904):eadq8778. [Abstract]
- Mol Cancer Ther. 2018 Dec;17(12):2676-2688. [Abstract]
- Plant J. 2022 Mar;109(5):1229-1248. [Abstract]
- Front Pharmacol. 2020 Nov 11;11:580407. [Abstract]
- Molecules. 2020 Apr 23;25(8):1980. [Abstract]
- J Biol Chem. 2026 Jun;302(6):111461. [Abstract]
- Lab Invest. 2018 Jun;98(6):708-714. [Abstract]
- Naunyn Schmiedebergs Arch Pharmacol. 2026 May 16. [Abstract]
- J Nat Prod. 2019 May 24;82(5):1331-1337. [Abstract]
- J Nat Prod. 2018 Nov 26;81(11):2531-2538. [Abstract]
- Biochem Biophys Res Commun. 2019 Jul 12;515(1):50-56. [Abstract]
- bioRxiv. 2026 Mar 25.
- bioRxiv. 2025 Sep 12.
- Elife. 2019 Dec 6;8:e50747. [Abstract]
- Harvard Medical School LINCS LIBRARY
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Bio/Physico-chemical Assay
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WB
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Cell Imaging/Staining
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In Vivo Efficacy Study
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In Vivo Efficacy Study
Actividad biológica
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mTOR 2.81 nM (IC50) |
mTOR 0.25 nM (EC50, Cell Assay) |
mTORC1 |
mTORC2 |
DNA-PK 0.5 nM (IC50) |
p110γ 5.67 nM (IC50) |
PI3K-C2β 24.5 nM (IC50) |
PI3K-C2α 28.1 nM (IC50) |
hVps34 8.58 nM (IC50) |
PI3K 200 nM (EC50, Cell Assay) |
ΡΙ4Κβ 18.3 nM (IC50) |
Autophagy |
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Cell Line
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Type | Value | Description | References |
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| HCT-116 | GI50 |
32.19 nM
Compound: Torin2
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Growth inhibition of human HCT116 cells measured after 72 hrs by Celltiter-Glo assay
Growth inhibition of human HCT116 cells measured after 72 hrs by Celltiter-Glo assay
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[PMID: 32911078] |
| HeLa | GI50 |
97.95 nM
Compound: Torin2
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Growth inhibition of human HeLa cells measured after 72 hrs by Celltiter-Glo assay
Growth inhibition of human HeLa cells measured after 72 hrs by Celltiter-Glo assay
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[PMID: 32911078] |
| HeLa | IC50 |
<10 nM
Compound: 15
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Inhibition of N-terminally FLAG-tagged mTORC2 (unknown origin) expressed in human HeLa cells using S6K1 or Akt1 as substrate after 20 mins by immunoblotting assay
Inhibition of N-terminally FLAG-tagged mTORC2 (unknown origin) expressed in human HeLa cells using S6K1 or Akt1 as substrate after 20 mins by immunoblotting assay
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[PMID: 29211480] |
| MOLM-13 | IC50 |
<1 nM
Compound: Torin2
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Antiproliferative activity against human MOLM13 cells by Cell-Titer Glo assay
Antiproliferative activity against human MOLM13 cells by Cell-Titer Glo assay
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[PMID: 30370766] |
| MOLM-14 | IC50 |
<1 nM
Compound: Torin2
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Antiproliferative activity against human MOLM14 cells by Cell-Titer Glo assay
Antiproliferative activity against human MOLM14 cells by Cell-Titer Glo assay
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[PMID: 30370766] |
| MV4-11 | IC50 |
<1 nM
Compound: Torin2
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Antiproliferative activity against human MV4-11 cells by Cell-Titer Glo assay
Antiproliferative activity against human MV4-11 cells by Cell-Titer Glo assay
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[PMID: 30370766] |
| PC-3 | EC50 |
200 nM
Compound: 3, Torin2
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Inhibition of PI3Kalpha in human PC3 cells expressing Akt1 S473D mutant assessed as phosphorylation of Akt Thr308 by immunoblotting
Inhibition of PI3Kalpha in human PC3 cells expressing Akt1 S473D mutant assessed as phosphorylation of Akt Thr308 by immunoblotting
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[PMID: 21322566] |
| RD | CC50 |
0.04 μM
Compound: 1
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Cytotoxicity against human RD cells incubated for 4 days by CellTiter-Glo luminescence assay
Cytotoxicity against human RD cells incubated for 4 days by CellTiter-Glo luminescence assay
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[PMID: 31082764] |
Torin 2 is subject to further profiling against a panel of lipid kinases with IC50s of 2.81 nM, 0.5 nM, 5.67 nM, 8.58 nM, 18.3 nM, 24.5 nM and 28.1 nM for mTOR, DNA-pK, p110γ, hVPS34, PI4Kβ, PI3K-C2β and PI3K-C2α, respectively. Torin 2 (Torin2) possesses a 250 pM EC50 for inhibiting mTOR in cells while maintaining 800-fold cellular selectivity relative to inhibition of PI3K and most other protein kinases[1]. Torin 2 (Torin2) exhibits potent biochemical and cellular activity against PIKK family kinases including ATM (EC50 28 nM), ATR (EC50 35 nM) and DNA-PK (EC50 118 nM). Torin 2 potently inhibits T308 of Akt, a direct substrate of PDK1 and an indirect substrate of PI3Ks, with an EC50 of less than 10 nM[2]. Torin-2 can suppress both mTORC1 and mTORC2[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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No. CAS 1223001-51-1
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Appearance Solid
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Peso molecular 432.40
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Fòrmula C24H15F3N4O
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Color White to light yellow
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SMILES
O=C1N(C2=C(C=C1)C=NC3=CC=C(C=C32)C4=CC=C(N=C4)N)C5=CC=CC(C(F)(F)F)=C5
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Envío
Room temperature in continental US; may vary elsewhere.
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Almacenamiento
Powder -20°C 3 years 4°C 2 years In solvent -80°C 1 year -20°C 6 months
Publications (21)
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Journal Impact Factor
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Most Recent
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Nat Commun
2024 Mar 18;15(1):2441. PMID: 38499565
Torin 2 purchased from MedChemExpress. Usage Cited in: Nat Commun. 2024 Mar 18;15(1):2441. [Abstract]
MCF-10A cells were EGF released for indicated time points and treated with different inhibitors. Blotted for p-p70 S6 Kinase (T389), p70 S6 Kinase, and -actin. Inhibitor concentration used: C75 (15µM), Nutlin-3 (10µM), Torin2 (500nM).
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J Clin Invest
Altered immune and metabolic molecular pathways drive islet cell dysfunction in human type 1 diabetes. [Abstract]2025 Sep 30:e195267. PMID: 41026524
Torin 2 purchased from MedChemExpress. Usage Cited in: J Clin Invest. 2025 Sep 30:e195267. [Abstract]
Effects of mTOR inhibition by 1 μM Torin 2 on glucagon dynamic secretion perfusion in ND islets (4 donors). To mimic mTORC1 downregulation in T1D α cells and evaluate its effect on glucagon secretion, ND islets were treated with Torin 2 (mTOR inhibitor) and subjected to dynamic hormone secretion assays at 5 mM glucose. Increased glucagon secretion (and, to a lesser degree, insulin; data not shown) was observed following Torin 2 administration, indicating that diminished reduced mTORC1 signaling contributed to hypersecretion.
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Cell Death Dis
Autophagic sequestration of SQSTM1 disrupts the aggresome formation of ubiquitinated proteins during proteasome inhibition. [Abstract]2022 Jul 15;13(7):615. PMID: 35840557
Torin 2 purchased from MedChemExpress. Usage Cited in: Cell Death Dis. 2022 Jul 15;13(7):615. [Abstract]
AD293 cells were transfected with plasmids expressing mRFP-CFTR∆F508 for 24 h, and then treated with DMSO (control), or MG132 (2 μM), or MG132 (2 μM)/ Torin 2 (1 μM) for 14 h, or pretreated with Rapamycin (2 μM) for 10 h and then treated with MG132 (2 μM)/Rapamycin (2 μM) for 14 h. The aggresome formation of mRFP-CFTR∆F508 was analyzed by fluorescence microscope. Nuclei were stained with DAPI (blue). Scale bar: 20 μm. The results showed that Torin 2 strongly inhibited the aggresome formation of mRFP-CFTRΔF508 expressed in AD293 cells.
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Cell Chem Biol
Pharmacological Targeting of Vacuolar H+-ATPase via Subunit V1G Combats Multidrug-Resistant Cancer. [Abstract]2020 Nov 19;27(11):1359-1370.e8. PMID: 32649904 -
Cell Syst
Torin2 Exploits Replication and Checkpoint Vulnerabilities to Cause Death of PI3K-Activated Triple-Negative Breast Cancer Cells. [Abstract]2020 Jan 22;10(1):66-81.e11. PMID: 31812693 -
Genes Dev
USP21 deubiquitinase elevates macropinocytosis to enable oncogenic KRAS bypass in pancreatic cancer. [Abstract]2021 Oct 1;35(19-20):1327-1332. PMID: 34531315 -
Sci Signal
Interleukins 15 and 18 synergistically prime the antitumor function of natural killer cells through noncanonical activation of mTORC1. [Abstract]2025 Sep 16;18(904):eadq8778. PMID: 40956875 -
Mol Cancer Ther
mTORC1/2 and Protein Translation Regulate Levels of CHK1 and the Sensitivity to CHK1 Inhibitors in Ewing Sarcoma Cells. [Abstract]2018 Dec;17(12):2676-2688. PMID: 30282812
Torin 2 purchased from MedChemExpress. Usage Cited in: Mol Cancer Ther. 2018 Dec;17(12):2676-2688. [Abstract]
The mTORC1/2 inhibitor Torin 2 suppresses protein synthesis in the EW8 and TC71 Ewing sarcoma cell lines.
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Plant J
The UPR regulator IRE1 promotes balanced organ development by restricting TOR-dependent control of cellular differentiation in Arabidopsis. [Abstract]2022 Mar;109(5):1229-1248. PMID: 34902186 -
Front Pharmacol
CC-223, NSC781406, and BGT226 Exerts a Cytotoxic Effect Against Pancreatic Cancer Cells via mTOR Signaling. [Abstract]2020 Nov 11;11:580407. PMID: 33343350 -
Molecules
In Vitro and in Vivo Activity of mTOR Kinase and PI3K Inhibitors Against Leishmania donovani and Trypanosoma brucei. [Abstract]2020 Apr 23;25(8):1980. PMID: 32340370
Torin 2 purchased from MedChemExpress. Usage Cited in: Molecules. 2020 Apr 23;25(8):1980. [Abstract]
Torin 2 (15 mg/kg). Efficacy of tested compounds in L. donovani—infected BALB/c mice.Parasite burden (LDU, Leishman-Donovan Unit) was evaluated 7 days after compound administration. Data are presented as mean ± SD; NA, not applicable.
Torin 2 purchased from MedChemExpress. Usage Cited in: Molecules. 2020 Apr 23;25(8):1980. [Abstract]
Mouse survival after treatment with 30 mg/kg pentamidine (solid green line), 15 mg/kg Torin 2 (solid black line) (p.o.; once daily), 5 mg/kg NVP-BGT226 (dotted black line), or the PBS control (solid blue line) for 5 days.
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J Biol Chem
2026 Jun;302(6):111461. PMID: 41999888 -
Lab Invest
2018 Jun;98(6):708-714. PMID: 29540860 -
Naunyn Schmiedebergs Arch Pharmacol
Neural stem cell extracellular vesicle-mediated delivery of astragaloside IV attenuates hypoxic-ischemic brain damage by activating the mTOR pathway. [Abstract]2026 May 16. PMID: 42142143 -
J Nat Prod
Clavukoellians A-F, Highly Rearranged Nardosinane Sesquiterpenoids with Antiangiogenic Activity from Clavularia koellikeri. [Abstract]2019 May 24;82(5):1331-1337. PMID: 30994348 -
J Nat Prod
Salviachinensines A-F, Antiproliferative Phenolic Derivatives from the Chinese Medicinal Plant Salvia chinensis. [Abstract]2018 Nov 26;81(11):2531-2538. PMID: 30370766 -
Biochem Biophys Res Commun
Schwann cell-specific PTEN and EGFR dysfunctions affect neuromuscular junction development by impairing Agrin signaling and autophagy. [Abstract]2019 Jul 12;515(1):50-56. PMID: 31122699 -
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Elife
Homeostasis of branched-chain amino acids is critical for the activity of TOR signaling in Arabidopsis. [Abstract]2019 Dec 6;8:e50747. PMID: 31808741 -
Harvard Medical School LINCS LIBRARY
Solvente y solubilidad
DMSO : 15.62 mg/mL (36.12 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 1.56 mg/mL (3.61 mM); Clear solution
This protocol yields a clear solution of ≥ 1.56 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (15.6 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
For the following dissolution methods, please prepare the working solution directly:
It is recommended to prepare fresh solutions and use them promptly within a short period of time.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% 1-Methyl-2-pyrrolidinone 90% PEG300
Solubility: ≥ 2 mg/mL (4.63 mM); Clear solution
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Protocolo
HCT116 cells are treated with 100 nM Torin 2 or AZD8055 for 1 hour before they are thoroughly washed out by 3×PBS and 1×DMEM medium. Then cells are incubated in DMEM medium for indicated time before they are lysed and collected using M-PER. Protein concentrations are measured and equal amount of proteins are loaded. Experiments are repeated three times and one set of results[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Mice[1]
Six-week old male C57BL/6 mice are fasted overnight prior to Torin 2 treatment. The mice are treated with vehicle (for 10 h) or Torin 2 (20 mg/kg for 6h) via oral gavage and then re-fed 1 h prior to sacrifice (CO2 asphyxiation). Liver and lung are collected and frozen on dry ice. The frozen tissue is thawed on ice and lysed by sonication in tissue lysis buffer (50 mM HEPES, pH 7.4, 40 mM NaCl, 2 mM EDTA, 1.5 mM sodium orthovanadate, 50 mM sodium fluoride, 10 mM sodium pyrophosphate, 10 mM sodium β-glycerophosphate, 0.1% SDS, 1.0% sodium deoxycholate, and 1.0% Triton, supplemented with protease inhibitor cocktail tablets). The concentration of clear lysate is measured using the Bradford assay and samples are subsequently normalized by protein content and analyzed by SDS-PAGE and immunoblotting.
Rats[3]
Female rats (220 g) are group-housed 4 animals per cage, and kept on a 12-hour light/dark cycle with food and water ad libitum. Spinal cord injury is done with the Keck Center for Neurosciences impactor using a 10 g weight dropped from a height of 25 mm onto the dorsal surface of the exposed spinal cord. After recording BBB scores, withdrawal thresholds evoked by touch stimulus, and body weights for the first week post-injury, animals are divided into 5 treatment groups: naïve (N=4), sham (N=6), vehicle (N=6), Torin 2 (N=6), and Torin 2+Rapamycin (N=8). Torin 2 alone (4 mg/kg) or in combination with Rapamycin (1.5 mg/kg) is administered orally by gavage once a day starting at day 15 after injury and ending at day 29. In sham operated rats only the laminectomy is performed.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Pureza y Documentación
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Ficha de datos (285 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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Instrucciones de manejo (2659 KB)
Referencias
[1]. Liu Q, et al. Discovery of 9-(6-aminopyridin-3-yl)-1-(3-(trifluoromethyl)phenyl)benzo[h][1,6]naphthyridin-2(1H)-one (Torin2) as a potent, selective, and orally available mammalian target of rapamycin (mTOR) inhibitor for treatment of cancer. J Med Chem. 2011 Mar 10;54(5):1473-80. [Content Brief]
[2]. Liu Q, et al. Characterization of Torin2, an ATP-competitive inhibitor of mTOR, ATM, and ATR. Cancer Res. 2013 Apr 15;73(8):2574-86. [Content Brief]
[3]. Codeluppi S, et al. Interleukin-6 secretion by astrocytes is dynamically regulated by PI3K-mTOR-calcium signaling. PLoS One. 2014 Mar 25;9(3):e92649. [Content Brief]
[4]. Wang X, et al. mTORC signaling in hematopoiesis. Int J Hematol. 2016 May;103(5):510-8. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.3127 mL | 11.5634 mL | 23.1267 mL | 57.8168 mL |
| 5 mM | 0.4625 mL | 2.3127 mL | 4.6253 mL | 11.5634 mL | |
| 10 mM | 0.2313 mL | 1.1563 mL | 2.3127 mL | 5.7817 mL | |
| 15 mM | 0.1542 mL | 0.7709 mL | 1.5418 mL | 3.8545 mL | |
| 20 mM | 0.1156 mL | 0.5782 mL | 1.1563 mL | 2.8908 mL | |
| 25 mM | 0.0925 mL | 0.4625 mL | 0.9251 mL | 2.3127 mL | |
| 30 mM | 0.0771 mL | 0.3854 mL | 0.7709 mL | 1.9272 mL |