Ixazomib
Based on 23 publication(s) in Google Scholar
Ixazomib (MLN2238) is a selective, potent, and reversible proteasome inhibitor, which inhibits the chymotrypsin-like proteolytic (β5) site of the 20S proteasome with an IC50 of 3.4 nM (Ki of 0.93 nM).
For research use only. We do not sell to patients.
- Purity: 99.30%
- CAS No.: 1072833-77-2
- Formula: C14H19BCl2N2O4
- Molecular Weight:361.03
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
Publications Citing Use of MedChemExpress (MCE) Ixazomib
More- Blood. 2019 Jan 10;133(2):156-167. [Abstract]
- Cell Discov. 2025 Sep 30;11(1):80. [Abstract]
- Cell Rep Med. 2025 Apr 2:102053. [Abstract]
- Free Radic Biol Med. 2023 Jul:203:86-101. [Abstract]
- Amyloid. 2019 Mar;26(1):24-33. [Abstract]
- Elife. 2019 Mar 12:8:e44161. [Abstract]
- Antimicrob Agents Chemother. 2025 Dec 10;69(12):e0089325. [Abstract]
- iScience. 2022 Jul 19;25(8):104781. [Abstract]
- Transl Oncol. 2022 Apr;18:101362. [Abstract]
- J Biol Chem. 2026 Jan 20:111182. [Abstract]
- Sci Rep. 2024 Mar 22;14(1):6873. [Abstract]
- J Biol Chem. 2023 Jun;299(6):104814. [Abstract]
- J Pharmacol Exp Ther. 2022 Jan;380(1):15-25. [Abstract]
- Cell Signal. 2025 Mar 25:111767. [Abstract]
- Cell Biochem Funct. 2022 Jun;40(4):403-416. [Abstract]
- Biochem Biophys Res Commun. 2021 Apr 16:549:1-7. [Abstract]
- bioRxiv. 2026 Mar 26.
- Charles University. 2026.
- bioRxiv. 2024 Jul 25.
- bioRxiv. 2024 July 19.
- bioRxiv. 2024 June 12.
- University of Pardubice. 2023 May 5.
- Oncotarget. 2020 Nov 3;11(44):3921-3932. [Abstract]
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Cell Proliferation/Viability Assay
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WB
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Cell Proliferation/Viability Assay
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In Vivo Efficacy Study
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In Vivo Efficacy Study
Biological Activity
IC50: 3.4 nM (20S proteasome)[1]
Ki: 0.93 nM (20S proteasome)[1]
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| ARH-77 | IC50 |
65.5 nM
Compound: MLN2238
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Cytotoxicity against human ARH77 cells assessed as reduction in cell viability after 72 hrs by CellTiter 96 aqueous one solution assay
Cytotoxicity against human ARH77 cells assessed as reduction in cell viability after 72 hrs by CellTiter 96 aqueous one solution assay
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[PMID: 29934218] |
| BT-549 | IC50 |
227.3 nM
Compound: Ixazomib
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Cytotoxicity against human BT-549 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
Cytotoxicity against human BT-549 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
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[PMID: 38039793] |
| Calu-6 | IC50 |
9 nM
Compound: MLN2238
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Inhibition of 26S proteasome beta5 subunit in human Calu6 cells using Suc-LLVY-aminoluciferin as substrate after 1hr by luminescence assay
Inhibition of 26S proteasome beta5 subunit in human Calu6 cells using Suc-LLVY-aminoluciferin as substrate after 1hr by luminescence assay
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10.1039/C2MD20060K |
| HEK293 | IC50 |
6.2 nM
Compound: MLN2238
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Inhibition of NFkappaB in HEK293 cells incubated for 1 hr prior to TNF-alpha challenge measured after 3 hrs by luciferase reporter gene assay relative to control
Inhibition of NFkappaB in HEK293 cells incubated for 1 hr prior to TNF-alpha challenge measured after 3 hrs by luciferase reporter gene assay relative to control
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10.1039/C2MD20060K |
| HeLa | GI50 |
181.8 μM
Compound: MLN 2238
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Cytotoxicity in human HeLa cells assessed as reduction in cell viability incubated for 24 hrs by MTT assay
Cytotoxicity in human HeLa cells assessed as reduction in cell viability incubated for 24 hrs by MTT assay
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[PMID: 32031798] |
| HepG2 | GI50 |
>200 μM
Compound: MLN 2238
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Cytotoxicity in human HepG2 cells assessed as reduction in cell viability incubated for 24 hrs by MTT assay
Cytotoxicity in human HepG2 cells assessed as reduction in cell viability incubated for 24 hrs by MTT assay
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[PMID: 32031798] |
| MCF7 | IC50 |
135.2 nM
Compound: Ixazomib
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Cytotoxicity against human MCF7 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
Cytotoxicity against human MCF7 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
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[PMID: 38039793] |
| MDA-MB-231 | IC50 |
42.6 nM
Compound: Ixazomib
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Cytotoxicity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
Cytotoxicity against human MDA-MB-231 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
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[PMID: 38039793] |
| RPMI-8226 | IC50 |
55.32 nM
Compound: MLN2238
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Cytotoxicity against human RPMI8226 cells assessed as reduction in cell viability after 72 hrs by CellTiter 96 aqueous one solution assay
Cytotoxicity against human RPMI8226 cells assessed as reduction in cell viability after 72 hrs by CellTiter 96 aqueous one solution assay
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[PMID: 29934218] |
| RPMI-8226 | IC50 |
7.4 nM
Compound: 18a
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Cytotoxicity against human RPMI-8226 cells assessed as inhibition of cell proliferation incubated for 72 hrs by Cell Titer-Glo luminescence assay
Cytotoxicity against human RPMI-8226 cells assessed as inhibition of cell proliferation incubated for 72 hrs by Cell Titer-Glo luminescence assay
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[PMID: 36806958] |
| U-266 | IC50 |
52.15 nM
Compound: MLN2238
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Cytotoxicity against human U266B1 cells assessed as reduction in cell viability after 72 hrs by CellTiter 96 aqueous one solution assay
Cytotoxicity against human U266B1 cells assessed as reduction in cell viability after 72 hrs by CellTiter 96 aqueous one solution assay
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[PMID: 29934218] |
Ixazomib (MLN2238) is an N-capped dipeptidyl leucine boronic acid and preferentially bound to and inhibited the chymotrypsin-like proteolytic (β5) site of the 20S proteasome with an IC50 value of 3.4 nM (Ki of 0.93 nM). At higher concentrations, Ixazomib (MLN2238) also inhibits the caspase-like (β1) and trypsin-like (β2) proteolytic sites (IC50 of 31 and 3,500 nM, respectively). Cell viability studies are performed in a variety of mammalian cell lines to compare the in vitro antiproliferative effects of Ixazomib (MLN2238) with Bortezomib. Studies performed with A375 (lung), H460 (lung), HCT-116 (colon), and HT-29 (colon) cells revealed similar LD50 values for the two compounds, which range from 4 to 58 nM[1].
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.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 1072833-77-2
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Appearance Solid
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Molecular Weight 361.03
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Formula C14H19BCl2N2O4
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Color White to off-white
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SMILES
OB([C@@H](NC(CNC(C1=CC(Cl)=CC=C1Cl)=O)=O)CC(C)C)O
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Synonyms
MLN2238
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (23)
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Journal Impact Factor
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Most Recent
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Blood
IDH2 inhibition enhances proteasome inhibitor responsiveness in hematological malignancies. [Abstract]2019 Jan 10;133(2):156-167. PMID: 30455381 -
Cell Discov
2025 Sep 30;11(1):80. PMID: 41027888 -
Cell Rep Med
CAN-Scan: A multi-omic phenotype-driven precision oncology platform identifies prognostic biomarkers of therapy response for colorectal cancer. [Abstract]2025 Apr 2:102053. PMID: 40187357 -
Free Radic Biol Med
Targeting ABCB6 with nitidine chloride inhibits PI3K/AKT signaling pathway to promote ferroptosis in multiple myeloma. [Abstract]2023 Jul:203:86-101. PMID: 37044150
Ixazomib purchased from MedChemExpress. Usage Cited in: Free Radic Biol Med. 2023 Jul:203:86-101. [Abstract]
The inhibitory effects of NC in combination with Bortezomib, Lenalidomide, Carfilzomib and Lxazomib (10 nM) in U266 , 8226, SP2/0 and 8226BTZR cells.
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Amyloid
2019 Mar;26(1):24-33. PMID: 30739503 -
Elife
Renal medullary carcinomas depend upon SMARCB1 loss and are sensitive to proteasome inhibition. [Abstract]2019 Mar 12:8:e44161. PMID: 30860482
Ixazomib purchased from MedChemExpress. Usage Cited in: Elife. 2019 Mar 12:8:e44161. [Abstract]
G401 xenograft tumor growth over time by individual mouse shows that treatment effects from Lxazomib (MLN2238 ;7 mg/kg IV twice a week for 4 weeks) can be seen as early as 8 days from treatment initiation as compared to vehicle control. Over 26 days, tumor volumes were significantly decreased in MLN2238 treated mice.
Ixazomib purchased from MedChemExpress. Usage Cited in: Elife. 2019 Mar 12:8:e44161. [Abstract]
Kaplan-Meier curves from mice with G401 xenograft tumors treated with either vehicle or Lxazomib (MLN2238 ;7 mg/kg IV twice a week for 4 weeks) over 61 days.
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Antimicrob Agents Chemother
Inhibitors of the 20S proteasome β5 subunit as potent and selective agents against Trichomonas vaginalis. [Abstract]2025 Dec 10;69(12):e0089325. PMID: 41218108 -
iScience
Identification of a drug-response gene in multiple myeloma through longitudinal single-cell transcriptome sequencing. [Abstract]2022 Jul 19;25(8):104781. PMID: 35992084
Ixazomib purchased from MedChemExpress. Usage Cited in: iScience. 2022 Jul 19;25(8):104781. [Abstract]
Dose-response curves for KMS-34 cells expressing PELI2, ELF3, or EREG in the presence of Ixazomib (Ixa; 0-2.5 nM; 48 h).
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Transl Oncol
poly(I:C) synergizes with proteasome inhibitors to induce apoptosis in cervical cancer cells. [Abstract]2022 Apr;18:101362. PMID: 35151092 -
J Biol Chem
Andrographolide targets syndecan4 to impair its interaction with syntenin and inhibits the biogenesis of small extracellular vesicles. [Abstract]2026 Jan 20:111182. PMID: 41570990 -
Sci Rep
Proteomic profiling reveals that ESR1 mutations enhance cyclin-dependent kinase signaling. [Abstract]2024 Mar 22;14(1):6873. PMID: 38519482 -
J Biol Chem
Diarylheptanoid 35d overcomes EGFR TKI resistance by inducing hsp70-mediated lysosomal degradation of EGFR in EGFR-mutant lung adenocarcinoma. [Abstract]2023 Jun;299(6):104814. PMID: 37178919
Ixazomib purchased from MedChemExpress. Usage Cited in: J Biol Chem. 2023 Jun;299(6):104814. [Abstract]
Western blot showing EGFR expression in GR6 and GR10 cells treated with 35d (2 μM) and lysosome inhibitors hydroxychloroquine (HCQ), bafilomycinA (bafA) and proteasome inhibitors MG132, Ixazomib (ixa; 0.2, 0.5 μM) at the indicated concentrations for 24 h.
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J Pharmacol Exp Ther
Ixazomib Induces Apoptosis and Suppresses Proliferation in Esophageal Squamous Cell Carcinoma through Activation of the c-Myc/NOXA Pathway. [Abstract]2022 Jan;380(1):15-25. PMID: 34740946 -
Cell Signal
Identification of a new micropeptide altKLF4 derived from KLF4 that influences myeloma chemotherapeutic sensitivity. [Abstract]2025 Mar 25:111767. PMID: 40147548 -
Cell Biochem Funct
Simultaneous proteasome and autophagy inhibition synergistically enhances cytotoxicity of doxorubicin in breast cancer cells. [Abstract]2022 Jun;40(4):403-416. PMID: 35485606 -
Biochem Biophys Res Commun
2021 Apr 16:549:1-7. PMID: 33647537 -
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Oncotarget
2020 Nov 3;11(44):3921-3932. PMID: 33216841
Solvent & Solubility
DMSO : 62.5 mg/mL (173.12 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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
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: ≥ 2.08 mg/mL (5.76 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.08 mg/mL (5.76 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
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.
Protocol
Calu-6 cells are cultured in MEM containing 10% fetal bovine serum and 1% penicillin/streptomycin and plated 1 d before the start of the experiment at 10,000 cells per well in a 384-well plate. For IC50 determinations, cells are treated with varying concentrations of Bortezomib or Ixazomib in DMSO (0.5% final, v/v) for 1 h at 37°C. For reversibility experiments, cells are treated with either 1 μM Bortezomib or Ixazomib (MLN2238) for 30 min at 37°C and then washed thrice in medium to remove the compounds. Cells are incubated for an additional 4 h at 37°C, after which the medium is removed and replaced with fresh medium. Proteasome activity is assessed by monitoring hydrolysis of the chymotrypsin-like substrate Suc-LLVY-aminoluciferin in the presence of luciferase using the Proteasome-Glo assay reagents. Luminescence is measured using a LEADseeker instrument[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Mice[1]
Male CB17-SCID mice, approximately 8 to 11 wk of age, are inoculated s.c. with freshly dissected CWR22 tumor fragments (~20 mg) in the right dorsal flank. Mean tumor volume (MTV) is calculated using the following formula: 0.5×(length×width2). When MTV reaches approximately 150 to 200 mm3, animals are randomized into treatment groups (n=10 per group) before dosing. Antitumor activity is determined at the end of the study by calculating the treatment over control (T/C) ratio of their MTVs at the end of the study.
Rats[1]
To determine the pharmacokinetic profile of Ixazomib and Bortezomib in a second species, Sprague-Dawley rats are administered a single i.v. dose of Ixazomib (MLN2238) at either 0.3 or 0.2 mg/kg or Bortezomib at 0.2 mg/kg. Both Ixazomib doses provided a greater plasma exposure (AUC0-48h of 704 and 1,070 h•ng/mL for 0.2 and 0.3 mg/kg doses, respectively) compared with Bortezomib (AUC0-48h of 206 h•ng/mL), confirming that Ixazomib (MLN2238) also has improved plasma exposure compared with Bortezomib in rodents.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (277 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)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
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, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 2.7699 mL | 13.8493 mL | 27.6985 mL | 69.2463 mL |
| 5 mM | 0.5540 mL | 2.7699 mL | 5.5397 mL | 13.8493 mL | |
| 10 mM | 0.2770 mL | 1.3849 mL | 2.7699 mL | 6.9246 mL | |
| 15 mM | 0.1847 mL | 0.9233 mL | 1.8466 mL | 4.6164 mL | |
| 20 mM | 0.1385 mL | 0.6925 mL | 1.3849 mL | 3.4623 mL | |
| 25 mM | 0.1108 mL | 0.5540 mL | 1.1079 mL | 2.7699 mL | |
| 30 mM | 0.0923 mL | 0.4616 mL | 0.9233 mL | 2.3082 mL | |
| 40 mM | 0.0692 mL | 0.3462 mL | 0.6925 mL | 1.7312 mL | |
| 50 mM | 0.0554 mL | 0.2770 mL | 0.5540 mL | 1.3849 mL | |
| 60 mM | 0.0462 mL | 0.2308 mL | 0.4616 mL | 1.1541 mL | |
| 80 mM | 0.0346 mL | 0.1731 mL | 0.3462 mL | 0.8656 mL | |
| 100 mM | 0.0277 mL | 0.1385 mL | 0.2770 mL | 0.6925 mL |